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Sample records for argentine radioprotection society

  1. Experience of the Argentine Radioprotection Society in training in radiological protection; Experiencia de la Sociedad Argentina de radioproteccion en capacitacion en proteccion radiologica

    Energy Technology Data Exchange (ETDEWEB)

    Bomben, A.M. [Sociedad Argentina de Radioproteccion (SAR), Av. del Libertador 8250 of. 122, (1429), Buenos Aires (Argentina)]. e-mail: abomben@sede.arn.gov.ar

    2006-07-01

    From its creation in 1967, the Argentine Radioprotection Society (SAR) has as basic purpose promoting all the aspects related with the radiological protection and the nuclear safety. Due to the great increment in the use of radioactive sources in diverse areas, soon it was evident for the SAR the importance and necessity to promote the knowledge of the radioprotection approaches between the users of radioactive sources and ionizing radiations in all its application fields, be these industrial, academic or doctors. From the year 2000, the SAR comes organizing in regular and periodical form basic and specialized courses about radiological safety of radioactive sources for industrial use and profile of oil wells, among others. In this work, the characteristics of the different dictated courses are described whose programs have been developed keeping in mind the requirements of the competent authorities of Argentina. Also, statistical information on the dictated courses and its participants is presented. The number of dictated courses was incremented from 6 (year 2000) up to 16 (year 2005), being also increased significantly the number of participants for course. The dictated courses are theoretical-practical, with a duration average of 20 hs. The educational body is constituted by specialists in the different topics with recognized experience. Its given to the participants notes and support material, as well as copies of the material presented to develop the course. When concluding the courses, its deliver to the participants certifies of attendance and/or approval, as it corresponds. In their headquarters the SAR has didactic facilities and specific equipment for the dictation of the courses. Also accounts with the easiness of dictating those courses outside of their headquarters. This is particularly advantageous for companies or organizations that are seated in points far from the main cities and they should qualify in radiological safety to the personnel but, by

  2. Meditation and Dance in Creative Society: Contemplative Consciousness in Daoism, Zen and Argentine Tango

    Directory of Open Access Journals (Sweden)

    Agnieška Juzefovič

    2015-07-01

    Full Text Available This paper deals with the particularly relevant topic in the contemporary society – Asian meditative practices and methods of self-development. The first chapter deals with the notion of contemplative, enlightened consciousness in Daoism and Zen. The second chapter shows how meditative consciousness could be achieved through social tango. Six theses are argued as appropriate for both Daoism and Zen as well as tango: 1 contemplative, purified consciousness is empty of disturbing thoughts and focused toward the essence; 2 contemplative, purified consciousness is not only empty but also brimming full; 3 contemplative, purified consciousness is identical with everyday mind; 4 contemplative mind is functioning according to the principles of non-action and naturalness; 5 meditation leads toward the unity and integrity of consciousness and body, consciousness and outside world; 6 active meditation is an effective way to obtain aims mentioned above. The argumentation of such thesis helps to show that tango is akin to various meditative practices. So it could not only be successfully used as a form of entertainment but also as a meditative practice, leading toward aims, similar to those of Zen meditations.

  3. Argentine Radiation Protection Society Experience in RP education and training; Experiencia de la Sociedad Argentina de Radioproteccion en capacitacion en Proteccion Radiologica

    Energy Technology Data Exchange (ETDEWEB)

    Bomben, A. M.; Ciallella, N. R.; Thomasz, E.; Rudelli, M.; Gisone, P.; Ventura, M.; Gomez Parada, I.; Signoretta, C.

    2003-07-01

    Since its creation in 1967, the Argentine Radiation Protection Society (SAR) promotes all the radiation protection and nuclear safety aspects not only within the scientific, technical and academic areas, but also to general public. To fulfill this objective, SAR organised training and refresher courses, seminars and workshops on RP subjects. During 2002, SAR organised 7 basic and specialized courses regarding the uses of radioactive materials in industrial applications and the course on medical response in radiological accidents, that was attended by Argentine and other Latin American participants. The programmes of the courses are developed in compliance with the legal requirements and also considering specifics needs. In this paper, the characteristics of the courses are enunciated and basic statistics regarding courses and participants are presented. For the 2003 and 2004, SAR foresees the organisation of 18 courses per year and has the capacity to deliver other courses by request. all the courses are delivered in Spanish language. Based on this educational experience SAR consider a priority the inclusion, of a RP module in all the scientific graduate programmes to generate awareness on the importance of RP. Taking into account the migration of professionals to Europe and North America and the Globalization, SAR advocates the harmonization of RP syllabus to attain an international recognition. (Author)

  4. [Comparison of FRAX Score without bone mineral density determination and the criteria proposed by the Argentine Osteoporosis Society for the use of antiresorptive therapy in postmenopausal women].

    Science.gov (United States)

    Camporro, Fernando; Redondo, Laura; Bulacio, Exequiel; Gutiérrez Magaldi, Ignacio; Chamale, Elías; Sáenz, Fabián

    2015-01-01

    To identify patients at high risk of fracture using clinical risk factors could reduce health costs arising from the realization of a bone densitometry. The aim of this study was to compare the FRAX score without bone mineral density (BMD) with the criteria proposed by the Argentine Society of Osteoporosis (SAO) to consider starting antiresorptive treatment. We conducted an observational, cross-sectional study where 330 postmenopausal women between 40 and 90 years of age were included. The number of treatments given if the FRAX tool without BMD had been followed was compared with the number of treatments indicated using the SAO criteria. Using the SAO criteria, 85 (25.8%) patients would initiate antiresorptive treatment compared with 15 (4.5%) using the FRAX without BMD (p = 0.0019). Among the 67 patients with a diagnosis of osteoporosis by BMD determination, all of them (100%) would have received treatment by using the SAO criteria compared with 10 (15%) using the FRAX score (p = 0.011). The use of FRAX without BMD significantly underestimates the number of patients who should receive antiresorptive treatment. In patients diagnosed with osteoporosis by BMD, the FRAX score underestimates the number of patients to be treated.

  5. Measures of the French Society of Radiology in the field of radiation protection; Actions de la Societe francaise de radiologie dans le domaine de la radioprotection

    Energy Technology Data Exchange (ETDEWEB)

    Ducou Le Pointe, Hubert [service de radiologie, Hopital d' enfants Armand-Trousseau, 28 Avenue du Docteur Arnold Netter, 75012 Paris (France)

    2011-07-15

    The SFR (French Society of Radiology), its regional delegations, in partnership with the organ societies and federations, and its radiation protection group, are working on various radiation protection topics, especially justification and optimisation. Their work in these areas involves: - drafting and publishing guides (correct use of medical imaging examinations, radiological procedures and practical guidelines to help radiologists assess their professional practices); - organizing continuous medical training and promoting research; - informing the patients about imaging examinations and the use of ionising radiation; - remaining in close contact with official organisations and taking part in international programmes. (author)

  6. Radioprotection calculations for MEGAPIE.

    Science.gov (United States)

    Zanini, L

    2005-01-01

    The MEGAwatt PIlot Experiment (MEGAPIE) liquid lead-bismuth spallation neutron source will commence operation in 2006 at the SINQ facility of the Paul Scherrer Institut. Such an innovative system presents radioprotection concerns peculiar to a liquid spallation target. Several radioprotection issues have been addressed and studied by means of the Monte Carlo transport code, FLUKA. The dose rates in the room above the target, where personnel access may be needed at times, from the activated lead-bismuth and from the volatile species produced were calculated. Results indicate that the dose rate level is of the order of 40 mSv h(-1) 2 h after shutdown, but it can be reduced below the mSv h(-1) level with slight modifications to the shielding. Neutron spectra and dose rates from neutron transport, of interest for possible damage to radiation sensitive components, have also been calculated.

  7. Radioprotection by metals: Selenium

    Science.gov (United States)

    Weiss, J. F.; Srinivasan, V.; Kumar, K. S.; Landauer, M. R.

    The need exists for compounds that will protect individuals from high-dose acute radiation exposure in space and for agents that might be less protective but less toxic and longer acting. Metals and metal derivatives provide a small degree of radioprotection (dose reduction factor salt, sodium selenite, and the organic Se compound, selenomethionine, enhance the survival of irradiated mice (60Co, 0.2 Gy/min) when injected IP either before (-24 hr and -1 hr) or shortly after (+15 min) radiation exposure. When administered at equitoxic doses (one-fourth LD10; selenomethionine = 4.0 mg/kg Se, sodium selenite = 0.8 mg/kg Se), both drugs enhanced the 30-day survival of mice irradiated at 9 Gy. Survival after 10-Gy exposure was significantly increased only after selenomethionine treatment. An advantage of selenomethionine is lower lethal and behavioral toxicity (locomotor activity depression) compared to sodium selenite, when they are administered at equivalent doses of Se. Sodium selenite administered in combination with WR-2721, S-2-(3-aminopropylamino)ethylphosphorothioic acid, enhances the radioprotective effect and reduces the lethal toxicity, but not the behavioral toxicity, of WR-2721. Other studies on radioprotection and protection against chemical carcinogens by different forms of Se are reviewed. As additional animal data and results from human chemoprevention trials become available, consideration also can be given to prolonged administration of Se compounds for protection against long-term radiation effects in space.

  8. Radioprotection: mechanism and radioprotective agents including honeybee venom

    Energy Technology Data Exchange (ETDEWEB)

    Varanda, E.A.; Tavares, D.C. [UNESP, Araraquara, SP (Brazil). Escola de Ciencias Farmaceuticas. Dept. de Ciencias Biologicas

    1998-07-01

    Since 1949, a great deal of research has been carried on the radioprotective action of chemical substances. These substances have shown to reduce mortality when administered to animals prior to exposure to a lethal dose of radiation. This fact is of considerable importance since it permits reduction of radiation-induced damage and provides prophylactic treatment for the damaging effects produced by radiotherapy. The following radioprotection mechanisms were proposed: free radical scavenger, repair by hydrogen donation to target molecules formation of mixed disulfides, delay of cellular division and induction of hypoxia in the tissues. Radioprotective agents have been divided into four major groups: the thiol compounds, other sulfur compounds, pharmacological agents (anesthetic drugs, analgesics, tranquilizers, etc.) and other radioprotective agents (WR-1065, WR-2721, vitamins C and E, glutathione, etc.). Several studies revealed the radioprotective action of Apis mellifera honeybee venom as well as that of its components mellitin and histamine. Radioprotective activity of bee venom involves mainly the stimulation of the hematopoietic system. In addition, release of histamine and reduction in oxygen tension also contribute to the radioprotective action of bee venom. (author)

  9. Argentine tango in Parkinson disease.

    Science.gov (United States)

    2016-10-28

    This article reports on a meta-analysis of 13 studies of the effects of Argentine tango (AT) as a music-based movement therapy for people with Parkinson's disease (PD). Nine studies involved randomised controlled trials.

  10. Radiobiological and standard data for radioprotection and radiotherapy

    Energy Technology Data Exchange (ETDEWEB)

    Jammet, H.

    1972-09-01

    From ninth annual meeting of the European Society for Radiation Biology; Rome, Italy (26 Sep 1972). Radiobiological data provide the scientific bases for radioprotection norms and radiotherapy practices. Nevertheless numerous problems remain unsolved including dosimetry at the cellular and infracellular level, metabolic curves for the purlfication of radionuclides, dose-effect relations for stochastic phenomena, effect of high doses on conjunctive tissue, value of the calibration factor in time, RBE of high energy particles, and radiosensitivity as a function of age and sex. The scope of these problems is briefly indicated. (JSR)

  11. Carlos Mayo and Argentine historiography

    Directory of Open Access Journals (Sweden)

    Sara E. Mata

    2012-11-01

    Full Text Available The work of Carlos Mayo is distinguished by its originality and academic excellence. Our goal has been to briefly address their valuable contributions to the Argentine historiography, particularly that relating to the agricultural history of the Río de la Plata

  12. Contemporary Argentine Cinema during Neoliberalism

    Science.gov (United States)

    Rocha, Carolina

    2009-01-01

    In this article I analyze contemporary Argentine cinematic production assessing the impact of Law 24,377 that was implemented in 1995 and that provided much-needed funds for national productions. By looking at film production and consumption, the emergence of young filmmakers and the performance of both commercial films and those belonging to the…

  13. Paradoxical role for eicosanoids: radioprotectants and radiosensitizers

    Energy Technology Data Exchange (ETDEWEB)

    Walden Jr, T.L.

    1987-01-01

    Understanding the radiobiology of eicosanoids is complicated by their ability to act as mediators of damage and recovery and as radioprotective agents. Changes in the tissue concentrations of eicosanoids following irradiation are dependent on several factors, including the type of eicosanoid, time postirradiation, radiation dose, and other contributing mediators and enzyme changes in the surrounding microenvironment. Many of these same prostaglandins and the leukotrienes have been shown to be radioprotective when given before irradiation.

  14. The ViewPoint radioprotection supervision workstation; Poste de supervision radioprotection viewpoint

    Energy Technology Data Exchange (ETDEWEB)

    Gaultier, E. [APVL Ingenierie- 6, bd Nobel - Equatop La Rabelais - 37540 Saint Cyr sur Loire (France)

    2009-07-01

    The author briefly presents the ViewPoint supervision global solution which incorporates audio and video advanced technologies to manage radioprotection operational measurements. Data can be transmitted by-wire or wireless. It can integrate a large number of radioprotection measurement instruments, such as a belt for the monitoring of physiological parameters (body temperature, breathing rhythm, body posture)

  15. Perspectives on Argentine Migration to Spain: Oral, Journal and Film Sources

    Directory of Open Access Journals (Sweden)

    Susana Schmidt

    2010-03-01

    Full Text Available This contribution takes up our doctoral research –Argentine migrationto Spain- to share some theoretical-methodological considerations.We refer to the conceptualization of "transnational social spaces," an approach that allows us to consider migration in its double dimension origin/destination and is particularly useful to thing the relationship between migration and creation of social and cultural ties in the Hispano-Argentine or Argentine-Spanish space. Similarly, the transnational spaces approach allows to put in dialog diverse social groups involved in the phenomenon: the migrants themselves, whose life stories are analysed by using oral sources; the society of origin and the host society, analysing collective image through journal sources; the filmmakers, whose migration stories we discussmigration through various fiction films; and, of course, historians and other social scientists who study these migrations.

  16. Predicting Argentine Jet Fuel Prices

    Science.gov (United States)

    2007-03-01

    economics, engineering, and the social and biological sciences (Kutner, 2005:2), but successful application of this method requires not only a deep...situations that affected the country. This crisis had politic, economic and social implications. Five presidents governed in a two month period. The...Scheimberg Sebastian. “Comentario al trabajo de German Coloma: Analisys of the behavior of the Argentine fuel market”. Political Economy Asociation

  17. Radioprotection rayonnements, dosimétrie, protection

    CERN Document Server

    Marey, Gérard

    2014-01-01

    Pour tous les travailleurs du nucléaire comme pour les étudiants des licences professionnelles et des BTS Environnement nucléaire et BTS radioprotection, l'ouvrage rassemble de façon progressive, claire et précise toutes les informations scientifiques et pratiques qui leur sont indispensables. Une première partie résume les données de base relatives à la structure de la matière, la stabilité des noyaux, les différents rayonnements, leur énergie et la décroissance radioactive. La deuxième partie constitue une approche progressive de la radioprotection s'appuyant sur l'influence des rayonnement sur la matière pour définir les notions de dose et aborder le dimensionnement des protections biologiques et des éléments de ventilation. Enfin, la dernière partie traite de la mise en oeuvre pratique de la radioprotection sur le terrain et de la gestion des déchets nucléaires en application de la technologie actuelle, de la réglementation et des directives imposées par l'exploitant qu'est EDF. De...

  18. Radioprotective effect of transferrin targeted citicoline liposomes.

    Science.gov (United States)

    Suresh Reddy, Jannapally; Venkateswarlu, Vobalaboina; Koning, Gerben A

    2006-01-01

    The high level of expression of transferrin receptors (Tf-R) on the surface of endothelial cells of the blood-brain-barrier (BBB) had been widely utilized to deliver drugs to the brain. The primary aim of this study was to use transferrin receptor mediated endocytosis as a pathway for the rational development of holo-transferrin coupled liposomes for drug targeting to the brain. Citicoline is a neuroprotective agent used clinically to treat for instance Parkinson disease, stroke, Alzheimer's disease and brain ischemia. Citicoline does not readily cross the BBB because of its strong polar nature. Hence, citicoline was used as a model drug. (Citicoline liposomes have been prepared using dipalmitoylphosphatidylcholine (DPPC) or distearoylphosphatidylcholine (DSPC) by dry lipid film hydration-extrusion method). The effect of the use of liposomes composed of DPPC or DSPC on their citicoline encapsulation efficiency and their stability in vitro were studied. Transferrin was coupled to liposomes by a technique which involves the prevention of scavenging diferric iron atoms of transferrin. The coupling efficiency of transferrin to the liposomes was studied. In vitro evaluation of transferrin-coupled liposomes was performed for their radioprotective effect in radiation treated cell cultures. In this study, OVCAR-3 cells were used as a model cell type over-expressing the Tf-R and human umbilical vein endothelial cells (HUVEC) as BBB endothelial cell model. The average diameter of DPPC and DSPC liposomes were 138 +/- 6.3 and 79.0 +/- 3.2 nm, respectively. The citicoline encapsulation capacity of DPPC and DSPC liposomes was 81.8 +/- 12.8 and 54.9 +/- 0.04 microg/micromol of phospholipid, respectively. Liposomes prepared from DSPC showed relatively better stability than DPPC liposomes at 37 degrees C and in the presence of serum. Hence, DSPC liposomes were used for transferrin coupling and an average of 46-55 molecules of transferrin were present per liposome. Free citicoline

  19. Note from the radioprotection group's shipping service

    CERN Multimedia

    2006-01-01

    Le service SHIPPING du groupe de radioprotection souhaite vous rappeler qu'avant toute expédition de matériel susceptible d'être radioactif, une demande de transport doit être établie par EDH en cochant la case appropriée (danger radioactif). Merci de bien vouloir prendre note des informations figurant dans le site Web: http://cern.ch/service-rp-shipping Toute demande non conforme ne sera pas prise en compte. Radioactive Shipping Service http://cern.ch/service-rp-shippingTél: 73171Fax: 69200

  20. The worldwide expansion of the Argentine ant

    DEFF Research Database (Denmark)

    Vogel, Valerie; Pedersen, Jes Søe; Giraud, Tatiana;

    2010-01-01

    ) and secondary introductions (from sites with established invasive supercolonies) were important in the global expansion of the Argentine ant. In combination with the similar social organization of colonies in the native and introduced range, this indicates that invasiveness did not evolve recently as a unique...

  1. Participation of women in neurochemistry societies.

    Science.gov (United States)

    Lees, Marjorie B

    2002-11-01

    Women have made important scientific contributions to the field of neurochemistry, and they have also been leaders in neurochemical societies throughout the world. Here I discuss women's involvement and leadership in six neurochemistry societies: American Society for Neurochemistry, Argentine Society for Neurochemistry, International Society for Neurochemistry, European Society for Neurochemistry, Japanese Society for Neurochemistry, and Asian-Pacific Society for Neurochemistry. The number of women who have been active in these societies and the level of their activity vary considerably. Neurochemical societies in the Western hemisphere, i.e., the American and the Argentine Society for Neurochemistry, have much greater numbers of women who have held office, been on council, or engaged in other leadership activities than in the rest of the world. The limited participation of women in the Japanese Neurochemistry Society relates to Japanese cultural views and was not unexpected. However, the relatively few women leaders in the International Society for Neurochemistry was a surprise. The European Society had a somewhat better record of female participation than did the International Society. The reasons for these differences are partly cultural, but factors related to when each society was formed, how it is organized, and how elections are structured undoubtedly play a role. Further analysis of these observations would be of interest from a sociological and a women's studies point of view.

  2. Analysis of Minocycline as a Radioprotectant

    Science.gov (United States)

    Mehrotra, Shalini

    Exposure to radiation is increasing in a variety of settings including space exploration, diagnostic medical procedures and radiotherapy. Cells of the hematopoietic system, such as white blood cells (WBC), are especially sensitive to radiation and their decline can result in Acute Radiation Syndrome (ARS). Radiotherapy is often used for cancers of the central nervous system (CNS), but includes the risk for normal tissue damage, often leading to cognitive impairment. The literature suggests that tetracyclines can be radioprotectors of the hematopoietic system with potential utility in radiation emergencies and anticancer radiotherapy. Minocycline, a semisynthetic tetracycline derivative, has anti-inflammatory, free radical scavenging, anti-apoptotic and anti-angiogenic properties with exceptional penetration into the CNS. These qualities make it a viable candidate for use in combination with radiotherapy for CNS tumors as a normal tissue radioprotectant and for hematopoietoc recovery following whole-body irradiation. This study was undertaken to determine the potential of minocycline as a radioprotective agent of the hematopoietic system and CNS in response to whole-body irradiation with 1, 2 and 3 Gy (γ-rays). C57BL/6 mice were injected with minocycline, 5 times beginning immediately before irradiation. Spleen, blood and brain were collected on days 4 and 32 post-irradiation. WBC and other cell populations were determined in the blood and spleen while cytokines were quantified in CD3-activated splenocytes and homogenized brain supernatants. We also evaluated the impact of minocycline on DNA synthesis and viability of human glioblastoma cells versus astrocytes and microglia. Minocycline increased counts and percentages of splenic macrophages, granulocytes, natural killer (NK), T and CD8 + T cells on day 4 and B cells on day 32. Minocycline up-regulated interleukin-1α (IL-1α)which is radioprotective, as well as granulocyte-macrophage colony stimulating factor (GM

  3. Hibernation for space travel: Impact on radioprotection.

    Science.gov (United States)

    Cerri, Matteo; Tinganelli, Walter; Negrini, Matteo; Helm, Alexander; Scifoni, Emanuele; Tommasino, Francesco; Sioli, Maximiliano; Zoccoli, Antonio; Durante, Marco

    2016-11-01

    Hibernation is a state of reduced metabolic activity used by some animals to survive in harsh environmental conditions. The idea of exploiting hibernation for space exploration has been proposed many years ago, but in recent years it is becoming more realistic, thanks to the introduction of specific methods to induce hibernation-like conditions (synthetic torpor) in non-hibernating animals. In addition to the expected advantages in long-term exploratory-class missions in terms of resource consumptions, aging, and psychology, hibernation may provide protection from cosmic radiation damage to the crew. Data from over half century ago in animal models suggest indeed that radiation effects are reduced during hibernation. We will review the mechanisms of increased radioprotection in hibernation, and discuss possible impact on human space exploration.

  4. Hibernation for space travel: Impact on radioprotection

    Science.gov (United States)

    Cerri, Matteo; Tinganelli, Walter; Negrini, Matteo; Helm, Alexander; Scifoni, Emanuele; Tommasino, Francesco; Sioli, Maximiliano; Zoccoli, Antonio; Durante, Marco

    2016-11-01

    Hibernation is a state of reduced metabolic activity used by some animals to survive in harsh environmental conditions. The idea of exploiting hibernation for space exploration has been proposed many years ago, but in recent years it is becoming more realistic, thanks to the introduction of specific methods to induce hibernation-like conditions (synthetic torpor) in non-hibernating animals. In addition to the expected advantages in long-term exploratory-class missions in terms of resource consumptions, aging, and psychology, hibernation may provide protection from cosmic radiation damage to the crew. Data from over half century ago in animal models suggest indeed that radiation effects are reduced during hibernation. We will review the mechanisms of increased radioprotection in hibernation, and discuss possible impact on human space exploration.

  5. Evaluation of the radioprotective efficacy of rifaximin

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Won Woo; Kim, Mi Sook; Jeong, Jae Hoon; Kim, Hee Jong [Dept. of Radiation Treatment Research, Korea Institute of Radiological and Medical Sciences, Seoul (Korea, Republic of)

    2014-04-15

    Radiation exposure causes severe intestinal damage, and intestinal injury has been shown to plays a pivotal role in survival. The non-systemic antibiotic, rifaximin, is used in the treatment of traveler's diarrhea due to bacterial enteropathogens and has an anti-biotic and an anti-inflammatory effect with low gastrointestinal absorption of < 0.4%. Rifaximin also has been used for treatment of irritable bowel syndrome, small bowel bacterial overgrowth, pouchitis. Jahraus et al. reported that rifaximin diminishes neutropenia following potentially lethalmwhole-body radiation. The purpose of this study was to evaluate the radioprotective effect of rifaximin on ionizing radiation-induced intestinal injury. Rifaximin showed increased survival rate as well as decreased weight loss between pre treatment and post treatment. Fortunately rifaximin seems to involveincreased number of crypt cells and length of villus. These findings suggest that rifaximin can be a strategy by protecting intestinal injury.

  6. Radio-protective role of antioxidant agents

    Directory of Open Access Journals (Sweden)

    Alireza Shirazi

    2012-10-01

    Full Text Available Ionizing radiation interacts with biological systems to produce reactive oxygen species and reactive nitrogen species which attack various cellular components. Radio-protectors act as prophylactic agents to shield healthy cells and tissues from the harmful effects of radiation. Past research on synthetic radio-protectors has brought little success, primarily due to the various toxicity-related problems. Results of experimental research show that antioxidant nutrients, such as vitamin E and herbal products and melatonin, are protective against the damaging effects of radiation, with less toxicity and side effects. Therefore, we propose that in the future, antioxidant radio-protective agents may improve the therapeutic index in radiation oncology treatments.

  7. 75 FR 53731 - Culturally Significant Objects Imported for Exhibition Determinations: “Contemporary Argentine...

    Science.gov (United States)

    2010-09-01

    ... for Exhibition Determinations: ``Contemporary Argentine Masterworks'' SUMMARY: Notice is hereby given... hereby determine that the objects to be included in the exhibition ``Contemporary Argentine...

  8. Argentine hemorrhagic fever: a primate model.

    Science.gov (United States)

    Weissenbacher, M C; Calello, M A; Colillas, O J; Rondinone, S N; Frigerio, M J

    1979-01-01

    Experimental Junin virus infection of a New World primate, Callithrix jacchus, was evaluated. The virus produced anorexia, loss of weight, thrombocytopenia, leukopenia, and hemorrhagic and neurological symptoms and terminated in death. Virus was recovered from urine, blood samples and all tissues taken at autopsy. These preliminary observations show that several aspects of the experimental disease in C. jacchus are quite similar to severe natural Argentine hemorrhagic fever of man.

  9. Interventional techniques in medicine and radioprotection; Les techniques interventionnelles en medecine et radioprotection

    Energy Technology Data Exchange (ETDEWEB)

    Le Guen, B.; Bar, O.; Benderitter, M.; Bourguignon, M.; Chevillard, S.; Gauron, Ch.; Lallemand, J.; Lombard, J.; Maccia, C.; Sapoval, M.; Bernier, M.O.; Pirard, Ph.; Jacob, S.; Donadille, L.; Aubert, B.; Clairand, I.; Mozziconacci, J.G.; Brot, A.M.; Jarrige, V.; Huet, Ch.; Marchal, C.; Martin, M.; Bar, O.; Degrange, J.P.; Livarek, B.; Menechal, Ph.; Sapoval, M.; Pellerin, O.

    2009-07-01

    This document gathers the slides of the available presentations given during this conference day. Nineteen presentations are assembled in the document and deal with: 1 - Interventional radiology: why is it developing? (M. Sapoval); 2 - exposure particularities in interventional radiology (O. Bar); 3 - doses received by organs in interventional cardiology (C. Maccia); 4 - Patients exposure: description of cumulated exposure of patients treated in interventional cardiology (M.O. Bernier); 5 - 2004 inquiry to dermatologists about post-interventional radiology radio-dermatitis (P. Pirard); 6 - exposure and risks to operators (S. Jacob); 7 - dosimetric evaluation techniques and results about interventional imaging operators' extremities (L. Donadille and F. Merat); 8 - bibliographic study of doses received by operators with non-protected organs (B. Aubert); 9 - ORAMED European project: optimization of operational dosimeter uses in interventional radiology (I. Clairand); 10 - reference levels and dosimetric evaluation of patients (C. Maccia); 11 - optimization in coronary angioplasty (J.G. Mozziconacci, A.M. Brot and V. Jarrige); 12 - dosimetry in medical over-exposure situation (C. Huet); 13 - significant radioprotection events in interventional radiology declared to the Nuclear Safety Authority (ASN) - status and experience feedback (C. Marchal); 14 - interventional radiology and unwanted effects (M. Benderitter); 15 - global analyses and new exposure indicators in human epidermis cells (M. Martin); 16 - radioprotection regulations and training (O. Bar); 17 - zoning and workplace analysis in interventional cardiology (J.P. Degrange); 18 - guide of good clinical practices: example of interventional cardiology (B. Livarek); 19 - how to encourage the radioprotection optimization in interventional radiology: the ASN's point of view (P. Menechal). (J.S.)

  10. Representative parameter of immunostimulatory ginseng polysaccharide to predict radioprotection

    Energy Technology Data Exchange (ETDEWEB)

    Son, Hyeog Jin; Shim, Ji Young; Ahn, Ji Yeon; Yun, Yeon Sook; Song, Jie Young [Korea Institute of Radiological and Medical Sciences, Seoul (Korea, Republic of)

    2008-09-15

    According to the increase in the use of radiotherapy to cancer patients, many approaches have been tried to develop new agents for the protection of surrounding normal tissues. However, it is still few applied in the clinic as a radioprotector. We aim to find a representative parameter for radioprotection to easily predict the activity of in vivo experiment from the results of in vitro screening. The polysaccharide extracted from Panax ginseng was used in this study because the immunostimulator has been regarded as one of the radioprotective agent category and was already reported having a promising radioprotective activity through the increase of hematopoietic cells and the production of several cytokines. Mitogenic activity, AK cells activity and nitric oxide production were monitored for the in vitro immunological assay, and endogenous Colony-Forming Unit (e-CFU) was measured as in vivo radioprotective parameter. The immunological activity was increased by the galactose contents of ginseng polysaccharide dependently. The result of this study suggests that mitogenic activity of splenocytes demonstrated a good correlation with in vivo radioprotective effect, and may be used as a representative parameter to screen the candidates for radioprotector.

  11. Human Keratinocytes Radioprotection with Mentha Longifolia

    Science.gov (United States)

    Rizzo, Angela Maria; Berselli, P.; Zava, S.; Negroni, M.; Corsetto, P.; Montorfano, G.; Bertolotti, A.; Ranza, E.; Ottolenghi, A.; Berra, B.

    Antioxidants are suggested to act as radioprotectors, and dietary supplements based on antiox-idants have been proposed for astronauts involved in long-term space missions. Plant extracts with antioxidant properties may be used in dietetic supplements for astronauts; in fact recent nutritional guidelines suggest that "fruits and vegetables may become as important on space-going vessels as limes were on the sea-going vessels of old". Mint presents a large variety of biological properties, such as antiallergenic, antibacterial, anti-inflammatory, antitumor, an-tiviral, gastrointestinal protective, hepatoprotective, chemopreventive activities, most of which are attributable to its antioxidant activity. The aim of the present study is to evaluate the antioxidant properties and protective bio-efficacy of a phenol enriched Mentha longifolia ex-tract on gamma rays stressed human keratinocytes (NCTC2544). We assessed first the in vitro antioxidant activity (ABTS and DPPH), and then evaluated different stress markers in order to investigate various oxidative stress targets: cell viability (MTT); retained proliferating ca-pability (CA); DNA damage (histone H2AX) and protein damage (HSP70 induction). Results indicate that this Mint extract has a higher antioxidant activity respect to fresh extracts, that could be responsible of its really interesting radio-protective effects.

  12. Antioxidant mechanisms in radiation injury and radioprotection

    Energy Technology Data Exchange (ETDEWEB)

    Weiss, J.F.; Kumar, K.S.

    1988-01-01

    Oxygen is a very important factor in determining radiosensitivity because it enhances the damage to cellular components caused by ionizing radiation, although mechanisms involved in UV irradiation damage may overlap ionizing radiation effects. This paper emphasizes chemical protection against damage by ionizing radiation and predominantly against the effects of photons (and gamma radiation). It is possible that free radicals and their products induced by ionizing radiation can interact with reactive oxygen species formed during normal processes, such as superoxide and hydrogen peroxide produced by phagocytic cells or during enzymatic processes (xanthine oxidase activity; enzymes involved in eicosanoid metabolism). Metals such as iron can promote free radical damage, whereas some bound metals have radioprotectant potential, e.g., metallothionein and ceruloplasmin. There is increasing evidence that maintenance of the proper oxidation-reduction state of cells by the interconversion of the peptide sulfhydryl glutathione (GSH), and its disulfide form (GSSG) is a factor in the modulation of cellular radiosensitivity. Other protein and nonprotein sulfhydryls may also play a role both as targets of radiation damage and as protectors. Other physiological antioxidants (vitamin E) and antioxidant enzymes are interrelated in their function of controlling oxidative processes. This review concentrates on the role of oxygen, glutathione, and antioxidant enzymes in radiosensitivity and how exogenous chemicals interact with these endogenous factors.

  13. Production and Radioprotective Effects of Pyrroloquinoline Quinone

    Directory of Open Access Journals (Sweden)

    De-Xuan Yang

    2011-12-01

    Full Text Available Pyrroloquinoline quinone (PQQ was produced by fermentation of the Methylovorus sp. MP688 strain and purified by ion-exchange chromatography, crystallization and recrystallization. The yield of PQQ reached approximately 125 mg/L and highly pure PQQ was obtained. To determine the optimum dose of PQQ for radioprotection, three doses (2 mg/kg, 4 mg/kg, 8 mg/kg of PQQ were orally administrated to the experimental animals subjected to a lethal dose of 8.0 Gy in survival test. Survival of mice in the irradiation + PQQ (4 mg/kg group was found to be significantly higher in comparison with the irradiation and irradiation + nilestriol (10 mg/kg groups. The numbers of hematocytes and bone marrow cells were measured for 21 days after sublethal 4 Gy gamma-ray irradiation with per os of 4 mg/kg of PQQ. The recovery of white blood cells, reticulocytes and bone marrow cells in the irradiation + PQQ group was faster than that in the irradiation group. Furthermore, the recovery of bone marrow cell in the irradiation + PQQ group was superior to that in irradiation + nilestriol group. Our results clearly indicate favourable effects on survival under higher lethal radiation doses and the ability of pyrroloquinoline quinine to enhance haemopoietic recovery after sublethal radiation exposure.

  14. Radioprotective Effects of Hairy Roots of Ginseng

    Energy Technology Data Exchange (ETDEWEB)

    Woo, Hyun Jung; Kim, Jin Kyu [Korea Atomic research Institute, Jeongeup (Korea, Republic of); Kim, Eun Young; Yang, Deok Cho [Chungbuk National Univ., Cheongju (Korea, Republic of)

    2005-07-01

    Panax ginseng is an important medicinal plant in Korea, which has broad efficacious effects against hypertension, diabetes, nociception and cancer. And it improves weakness. The native ginseng is a slow growing plant taking 5-7 years from seed planting to mature root harvesting, during which time much care is needed since its growth is susceptible to many environmental factors such as soil, shade, climate, pathogens and pests. Nowadays, a wild ginseng has become extremely scarce and the ginseng supply depends almost exclusively on field cultivation, which is a time-consuming and labor-intensive process. To meet the demand for the plant in the international market, a bioreactor technology is a useful tool for production of root biomass on a large scale. Therefore, suspension culture of ginseng roots in bioreactors is viewed as a primary alternative method for large-scale production and recently our laboratory has developed a protocol for the in vitro culture of P. ginseng. About 60-70% of cellular DNA damage produced by ionizing radiation is caused by OH, formed from the radiolysis of water. Oxidative stress occurs when there is an excessive free radical production and/or low antioxidant defense, and results in the chemical alterations of biomolecules causing structural and functional modifications. The generation of the reactive oxygen metabolites plays an important role in the pathogenesis of the irradiation-induced tissue injury. An extensive literature review implicates cellular DNA as the primary target for the biological and lethal effects of ionizing radiation. Besides DNA, lipids and proteins are also attacked by free radicals. The purpose of this study, aimed at investigating the possible radioprotective effect of the hairy roots of P. ginseng on irradiation-induced damage by the comet assay.

  15. Radioprotection et ingénierie nucléaire

    CERN Document Server

    2006-01-01

    Le développement de l'énergie nucléaire repose sur deux piliers essentiels : la sûreté nucléaire, qui concerne la machine, et la radioprotection, qui se préoccupe des hommes. Construit de manière fiable, un réacteur nucléaire se doit d'irradier le moins possible ses opérateurs et conduire à un impact très faible pour les populations avoisinantes. Tout cela est soumis à des règles strictes, élaborées au niveau international, et qui ne tolèrent aucun écart. Les ingénieurs qui ont à concevoir, construire et conduire ces machines doivent maîtriser les règles de protection : cet ouvrage leur est destiné. La radioprotection, si elle se fonde principalement sur des bases scientifiques, intègre également une dimension sociétale exigeante. Ces activités sont en effet sous le regard critique et permanent de nos concitoyens, qui exigent des acteurs de cette industrie une maîtrise totale de la radioprotection ; un ingénieur qui ne connaîtrait pas la genèse de la radioprotection, ses règle...

  16. Genetic predisposition and implications for radioprotection

    Energy Technology Data Exchange (ETDEWEB)

    Streffer, Christian [University Clinics, Essen, Essen (Germany)

    2000-05-01

    retinoblastoma who did not have a genetic predisposition. Mainly osteoblastoma and soft tissue sarcoma were observed in the former radiation field. From these date it must be concluded that such effects also occur in the low dose range. Individuals with the extreme radiosensitivity (dose modifying factor, DMG, of around 5) are rare, but there are individuals with a DMF of around 1.5 to 2 who are more frequent. Therefore it has to be discussed whether the individual variability of radiosensitivity must also be considered for radioprotection by special dose limits or other regulations. (author)

  17. Exploration of Possible Astroblemes in the Argentine Puna

    Science.gov (United States)

    Acevedo, R. D.; Alonso, R.; Rocca, M.; Klajnik, K.; Tálamo, E.

    2014-09-01

    Potential three new astrobleme sites have been detected by remote sensors and checked in situ in Argentine Puna: an elevated plateau that it has remained stable and invariable across long geological periods.

  18. Framing crime: moral panic in Argentine newspapers

    Directory of Open Access Journals (Sweden)

    Natalia ARUGUETE

    2013-01-01

    Full Text Available Carolina Píparo was shot a few minutes after withdrawing cash from a bank branch. This case outraged the public opinion because she was eight months pregnant at the moment of the assault. She had to undergo a caesarean section and her baby only survived one week. Through an exploratory and inductive research we will analyze how the Argentine newspapers presented the case. We aim at elaborating a content analysis code book that can be validated in future similar researches on the subject. We apply the Framing theory in order to detect the frames used in the news coverage and to observe if they are compatible with the idea of «moral panic» proposed by Stanley Cohen.

  19. Pheromone disruption of Argentine ant trail integrity

    Science.gov (United States)

    Suckling, D.M.; Peck, R.W.; Manning, L.M.; Stringer, L.D.; Cappadonna, J.; El-Sayed, A. M.

    2008-01-01

    Disruption of Argentine ant trail following and reduced ability to forage (measured by bait location success) was achieved after presentation of an oversupply of trail pheromone, (Z)-9-hexadecenal. Experiments tested single pheromone point sources and dispersion of a formulation in small field plots. Ant walking behavior was recorded and digitized by using video tracking, before and after presentation of trail pheromone. Ants showed changes in three parameters within seconds of treatment: (1) Ants on trails normally showed a unimodal frequency distribution of walking track angles, but this pattern disappeared after presentation of the trail pheromone; (2) ants showed initial high trail integrity on a range of untreated substrates from painted walls to wooden or concrete floors, but this was significantly reduced following presentation of a point source of pheromone; (3) the number of ants in the pheromone-treated area increased over time, as recruitment apparently exceeded departures. To test trail disruption in small outdoor plots, the trail pheromone was formulated with carnuba wax-coated quartz laboratory sand (1 g quartz sand/0.2 g wax/1 mg pheromone). The pheromone formulation, with a half-life of 30 h, was applied by rotary spreader at four rates (0, 2.5, 7.5, and 25 mg pheromone/m2) to 1- and 4-m2 plots in Volcanoes National Park, Hawaii. Ant counts at bait cards in treated plots were significantly reduced compared to controls on the day of treatment, and there was a significant reduction in ant foraging for 2 days. These results show that trail pheromone disruption of Argentine ants is possible, but a much more durable formulation is needed before nest-level impacts can be expected. ?? 2008 Springer Science+Business Media, LLC.

  20. The radioprotective effect of a new aminothiol (20-PRA

    Directory of Open Access Journals (Sweden)

    M.F. Dolabela

    1998-08-01

    Full Text Available We examined the radioprotective effect of aminothiol 2-N-propylamine-cyclo-hexanethiol (20-PRA on a human leukemic cell line (K562 following various radiation doses (5, 7.5 and 20 Gy using a source of 60Co g-rays. At 5 Gy and 1 nM 20-PRA, a substantial protective effect (58% was seen 24 h after irradiation, followed by a decrease at 48 h (11%. At the high radiation dose (20 Gy a low protective effect was also seen (35%. In addition, the antitumorigenic potential of 10 nM 20-PRA was shown by the inhibition of crown gall formation induced by Agrobacterium tumefaciens. The radioprotective potency of 20-PRA is 105-106 times higher than that of the aminothiol WR-1065 (N-(2-mercaptoethyl-1,3-diaminopropane whose protective effect is in the 0.1 to 1.0 mM range.

  1. Radioprotection of the rat parotid gland by cAMP

    Energy Technology Data Exchange (ETDEWEB)

    Sodicoff, M.; Conger, A.D.

    1983-10-01

    Most earlier studies showing a radioprotective effect by cAMP show only slight degrees of protection. The present study demonstrates a substantial protective effect (DMF, 1.63) of exogenously administered cAMP on the rat parotid gland and supports the mechanism suggested previously for protection afforded the parotid glands by the ..beta..-adrenergic agonist isoproterenol, which is known to elevate endogenous intracellular cAMP.

  2. Proton irradiation of stem cells: Radiation damage and chemical radioprotection

    Science.gov (United States)

    Riley, R. C.; Montour, J. L.; Gurney, C. W.

    1972-01-01

    Effects of high energy protons on erythropoietic stem cells and radioprotection by chemicals were investigated in NASA Space Radiation Effects Laboratory. The effects of a parallel beam of 600 MeV protons. The fluence, when converted to dose, were referenced to the synchrocyclotron beam monitors which were then used to administer radiation exposures. Mice were given graded doses to 300 rads to determine dose-response curve. Other mice received saline, AET, or 5-hydroxytryptamine 10 to 15 minutes before exposure.

  3. Radioprotection, biological effects of the radiations and security in the handling of radioactive material

    CERN Document Server

    Teran, M

    2000-01-01

    The development of the philosophy of the radioprotection is dependent on the understanding of the effects of the radiation in the man. Behind the fact that the radiation is able to produce biological damages there are certain factors with regard to the biological effects of the radiations that determine the boarding of the radioprotection topics.

  4. A study of the radioprotection effect of guarana (Paullinia cupana) on the fetuses of ICR mice

    Energy Technology Data Exchange (ETDEWEB)

    Gu, Yeun Hwa; Hasegawa, Takeo; Yamamoto, Youichi; Suzuki, Ikukatsu [Suzuka Univ. of Medical Science, Suzuka (Japan); Yoon, Yeog Byung [Shinheung college, Uijeongbu (Korea, Republic of); Rhee, Soo Yong [Hanyang Univ., Seoul (Korea, Republic of)

    2001-12-15

    Guarana, a tropical plant is found in powdered for in health food and is very popular soft drink in Brazil as an energy feaster with its high caffeine contents. We examined its radioprotection effects during organogenesis stages of ICR mice by malformations rate and cellular lead 8 the embryo by radiation and analyzed the mechanism of the radioprotection effects in the fetal of ICR mice. The results of this study showed that Guarana reduced clearly the embryonic death rate and teratogenesis rate by radiation. Its radioprotection effect inject be related with its radioprotection effect might be related with its antioxidant effect or free radical scavenger. We need to exposure the Guarana as a potential radioprotection agent. Therefore, we investigated about radiation effects by Guarana using to mice experiments in this paper.

  5. TDT in Argentine and Chile: dynamics of power in the process of adoption of the technological standard ISDB-TB

    Directory of Open Access Journals (Sweden)

    Carla RODRÍGUEZ MIRANDA

    2012-02-01

    Full Text Available The article analyses the media policymaking process about the adoption of the technological standard for the digital terrestrial television in Argentine and Chile. The explorative and descriptive study inquires about the tensions, articulations and dynamics of the national and supranational parties (State, broadcasters, lobbies of technical standards and civil society that played in the politic process from the late 90s when the issue of digital television inserted into public agenda until August/September on 2009 when both countries adopted the Japanese- Brazilian technology system.

  6. Radioprotection of targeted and bystander cells by methylproamine

    Energy Technology Data Exchange (ETDEWEB)

    Burdak-Rothkamm, Susanne [Queen' s University Belfast, Centre for Cancer Research and Cell Biology, Belfast (United Kingdom); Oxford University Hospitals, Cellular Pathology, Oxford (United Kingdom); Smith, Andrea; Lobachevsky, Pavel; Martin, Roger [Peter MacCallum Cancer Centre, Molecular Radiation Biology Laboratory, Melbourne (Australia); University of Melbourne, The Sir Peter MacCallum Department of Oncology, Melbourne (Australia); Prise, Kevin M. [Queen' s University Belfast, Centre for Cancer Research and Cell Biology, Belfast (United Kingdom)

    2014-09-23

    Radioprotective agents are of interest for application in radiotherapy for cancer and in public health medicine in the context of accidental radiation exposure. Methylproamine is the lead compound of a class of radioprotectors which act as DNA binding anti-oxidants, enabling the repair of transient radiation-induced oxidative DNA lesions. This study tested methylproamine for the radioprotection of both directly targeted and bystander cells. T98G glioma cells were treated with 15 μM methylproamine and exposed to {sup 137}Cs γ-ray/X-ray irradiation and He{sup 2+} microbeam irradiation. Radioprotection of directly targeted cells and bystander cells was measured by clonogenic survival or γH2AX assay. Radioprotection of directly targeted T98G cells by methylproamine was observed for {sup 137}Cs γ-rays and X-rays but not for He{sup 2+} charged particle irradiation. The effect of methylproamine on the bystander cell population was tested for both X-ray irradiation and He{sup 2+} ion microbeam irradiation. The X-ray bystander experiments were carried out by medium transfer from irradiated to non-irradiated cultures and three experimental designs were tested. Radioprotection was only observed when recipient cells were pretreated with the drug prior to exposure to the conditioned medium. In microbeam bystander experiments targeted and nontargeted cells were co-cultured with continuous methylproamine treatment during irradiation and postradiation incubation; radioprotection of bystander cells was observed. Methylproamine protected targeted cells from DNA damage caused by γ-ray or X-ray radiation but not He{sup 2+} ion radiation. Protection of bystander cells was independent of the type of radiation which the donor population received. (orig.) [German] Radioprotektive Agenzien sind sowohl in der Strahlentherapie von Krebserkrankungen als auch im Strahlenschutz im Zusammenhang mit akzidenteller Exposition von Bedeutung. Methylproamine ist die Leitsubstanz einer Klasse von

  7. Use of remote sensing and GIS to identify Flamingo habitat in the Argentine Altiplano

    Science.gov (United States)

    Boyle, Susan C.; Hoffer, Roger M.; Boyle, Terence P.; Bucher, Enrique H.

    1992-01-01

    The Argentine altiplano is a remote area which has never been adequately mapped. It is an arid region with harsh climate, little vegetation, sparse population, and an average elevation of over 3,500 feet. Little is known about the large populations of three species of flamingos which nest and feed in the altiplano lakes. In a study funded by the National Geographic Society satellite data (Landsat MSS and TM data) were used to map the location of major water bodies and to analyze the spectral characteristics of the aquatic ecosystems in the altiplano. A comparison of the two images revealed dramatic changes in the size, depth, and spectral reflectance of the lakes utilized by the flamingos.

  8. Radioprotection optimization in the electronuclear, industrial and medical domains; Optimisation de la radioprotection dans les domaines electronucleaire, industriel et medical

    Energy Technology Data Exchange (ETDEWEB)

    Schieber, C.; Abela, G.; Ammerich, M.; Balduyck, S.; Batalla, A.; Drouet, F.; Fracas, P.; Gauron, Ch.; Le Guen, B.; Lombard, J.; Mougnard, Ph.; Murith, Ch.; Rannou, A.; Rodde, S.; Selva, M.; Tranchant, Ph.; Schieber, C.; Solaire, T.; Le Tonqueze, Y.; Jolivet, P.; Chauveau, D.; Mathevet, L.; Juhel, T.; Mertz, L.; Bochud, F.O.; Desmaris, G.; Turquet de Beauregard, G.; Roy, C.; Delacroix, S.; Sevilla, A.; Rehel, J.L.; Bernhard, S.; Palut-Laurent, O.; Lochard, J.; Lebaron-Jacobs, L.; Wack, G.; Barange, K.; Delabre, H.

    2011-07-01

    This document gathers the slides of the available presentations given during these conference days. Thirty one presentations are assembled in the document and deal with: 1 - implementation of the ALARA principle in the nuclear, industrial and medical domains: status and challenges (C. Schieber); 2 - image quality and scanner irradiation: what ingredients to chose? (T. Solaire); 3 - radioprotection stakes and implementation of the ALARA approach during the IFMIF design (Y. Le Tonqueze); 4 - ALARA at the design stage of the EPR (P. Jolivet); 5 - alternative techniques to iridium 192 gamma-graphy for welds control: results and recommendations from the ALTER-X project (D. Chauveau); 6 - alternative techniques to ionizing radiations use in the medical domain: implementation of navigation strategies (L. Mathevet); 7 - justification of ionizing radiations use in non-medical imaging: overview of the French situation and perspectives status (S. Rodde); 8 - ISOE: task scheduling for radioprotection optimization in nuclear power plants (G. Abela); 9 - Practices and ALARA prospects among big nuclear operators (T. Juhel); 10 - experience feedback on the use of diagnostic reference levels (DRLs) in diagnostic imaging optimization (L. Mertz); 11 - DRLs: Swiss strategy and concept limits (F.O. Bochud); 12 - external dosimetry tools: the existing, the developing and the remaining problems (A. Rannou); 13 - is the optimization principle applicable to the aircraft personnel's exposure to cosmic radiation? (G. Desmaris); 14-15 - experience feedback of the ALARA approach concerning an operation with strong dosimetric stakes (P. Mougnard and N. Fontaine); 16 - optimization of reactor pool decontaminations ((P. Tranchant); 17 - radiopharmaceuticals transport - ALARA principle related stakes (G. Turquet de Beauregard); 18 - ALARA in vet radio-diagnosis activity: good practices guide (C. Roy); 19 - implementation of the ALARA approach at the Proton-therapy centre of Orsay's Curie

  9. The Mindful Attention Awareness Scale (MAAS) in an Argentine Population

    Science.gov (United States)

    Montes, Silvana Andrea; Ledesma, Rubén Daniel; García, Natalia Mariana; Poó, Fernando Martín

    2014-01-01

    The purpose of this study was to provide evidence of validity for the Mindful Attention Awareness Scale scores in an Argentine sample (Spanish-language version). Results indicated satisfactory psychometric properties (a one-factor structure, good item discrimination, high reliability, and significant correlations with additional measures). This…

  10. How to promote the optimization of radioprotection in interventional radiology: the ASN's point of view; Comment favoriser l'optimisation de la radioprotection en radiologie interventionnelle: le point de vue de l'ASN

    Energy Technology Data Exchange (ETDEWEB)

    Menechal, Ph. [Autorite de Surete Nucleaire, Division de Bordeaux, 75 - Paris (France); Valero, M.; Godet, J.L [Autorite de Surete Nucleaire, Direction des rayonnements ionisants et de la sante, 75 - Paris (France)

    2009-07-01

    Within a context of development of interventional imagery practices, radioprotection in interventional radiology and in operating theatre suite where ionizing radiation are used has become a matter of concern. Before the publication of a work group created at the initiative of the ASN (the French nuclear safety authority) with a professional group (the GPMED, the permanent group of radioprotection experts for medical and forensics applications of ionizing radiations), the authors, members of the ASN, based on declared events and radioprotection inspection reports, give an overview of the faced challenges and problems and of progresses to be made in terms of radioprotection, dosimetry, procedures, and personnel qualification. They make a distinction between the patient radioprotection issue and the worker radioprotection issue

  11. Radioprotection of the environment. Recent advances in nuclear ecotoxicology research

    Energy Technology Data Exchange (ETDEWEB)

    Garnier-Laplace, J.; Gilbin, R. [Institut de Radioprotection et de Surete Nucleaire, Service d' Etudes du Comportement des Radionucleides dans les Ecosystemes (IRSN/DEI/SECRE), Saint-Paul-Lez-Durance (France); Alonzo, F.; Beaugelin, K.; Hinton, T.G.

    2010-07-01

    Funding for radioecology in Europe escalated after the Chernobyl accident, and remained elevated for some 15 year. The enhanced funding permitted Europeans to explore new directions in radioecology, particularly in the area of effects to non-human biota. Herein we highlight several recent advances: (1) an attempt to merge environmental risk analysis methods for radioactive contamination with those for other pollutants using species sensitivity distribution; (2) attempts to extrapolate damage observed in individual organisms to potential effects in their populations; and (3) the use of advanced models to estimate and explain changes in an individual's energy allocation as a result of exposure to low doses of radionuclides. We conclude by presenting the radioecology Alliance: an international network whose goal is to integrate resources in order to efficiently fill knowledge gaps in radioecology and improve risk assessments tools that support both human and environmental radioprotection. (orig.)

  12. Radioprotection of the digestive tract by intravenous infusion of vasopressin

    Energy Technology Data Exchange (ETDEWEB)

    Juillard, G.J.F.; Peter, H.H.; Weisenburger, T.H.; Tesler, A.S.; Langdon, E.A.; Barenfus, M.; Lagasse, L.D.; Watring, W.E.; Smith, M.L.

    1975-09-01

    The effect of venous infusions of vasopressin during fractionated abdominal radiation exposures was evaluated in four pairs of dogs. In each pair, the control dog was given venous infusion of saline during irradiation. The results were analyzed from clinical observation, autopsy findings, and pathological examination. It appears that venous infusion of vasopressin has a definite and reproducible effect of radioprotection on the gastrointestinal tract, the dose modifying factor (DMF) being 1.5. Radiation therapy of the gynecologic malignancies would be one major application since the radiosensitivity of the intestinal tract is often a limiting factor in delivering high doses to the tumor, and further investigations are being done to study the effects of vasopressin on the radiosensitivity of malignant tumors.

  13. Radioprotection of Swiss albino mice by Myristica fragrans houtt.

    Science.gov (United States)

    Sharma, Mini; Kumar, Madhu

    2007-03-01

    Nutmeg, the dried seed kernel of Myristica fragrans, MF (Family: Myristicaceae) possesses antifungal, hepatoprotective and antioxidant properties. Its radioprotective effect against 6, 8 and 10 Gy gamma radiation was evaluated by 30 day survival assay. Regression analysis yielded LD(50/30 )as 6.83 Gy and 8.89 Gy for irradiated only and (MF + radiation) groups, respectively. The dose reduction factor was computed as 1.3. Administration of MF significantly enhanced hepatic glutathione (GSH) and decreased testicular lipid peroxidation (LPO) level whereas acid phosphatase (ACP) and alkaline phosphatase (ALP) activity did not show any significant alteration. Irradiation resulted in significant elevation in LPO level and ACP activity, and decreased the GSH content and ALP activity. MF pretreatment effectively protected against radiation induced biochemical alteration as reflected by a decrease in LPO level and ACP activity, and an increase in GSH and ALP activity. The present study has implications for the potential use of MF as a radioprotector.

  14. Radioprotective effects of ascorbic acid in barley seeds

    Energy Technology Data Exchange (ETDEWEB)

    Conger, B.V.

    1975-01-01

    Experiments were conducted to test the radioprotective effects of a naturally occurring reducing agent, ascorbic acid, on seeds (caryopses) of barley, Hordeum vulgare L. emend Lam. Seeds were soaked either before or after ..gamma.. or fission neutron irradiation in distilled water or ascorbic acid solutions ranging in concentration from 0.01 to 1.00 M. Results are reported as percentage germination, seedling height, seedling growth reduction, and (in one experiment) percent of cells with chromosome aberrations. As evidenced by both reduced germination and seedling growth, ascorbic acid was toxic when seeds were soaked for 1 hr at ambient temperature prior to irradiation and then planted immediately. When seeds were soaked in ascorbic acid before irradiation and soaked after irradiation in air-bubbled water at 0/sup 0/C for 18 hr, the toxicity disappeared, and a protective effect (which increased with increasing ascorbic acid concentration) was observed for ..gamma.. and, to a lesser extent, for neutron irradiation. Additional studies suggested that the protective effect was related to reduced hydration of the embryos of seeds soaked in ascorbic acid. Also, no radioprotective effect was observed when seeds were presoaked for 2 or 16 hr in 0.01 M ascorbic acid solutions buffered at pH 3 or pH 7. A protective effect was observed for seeds of 1.5 percent water content soaked after irradiation in an oxygen-bubbled ascorbic acid solution of 0.5 M but was not observed for seeds soaked in nitrogen-bubbled ascorbic acid. The protective effect against oxygen-dependent damage may be a result of interaction of ascorbic acid with radiation-induced free radicals.

  15. Development of Functional Foods and Advanced Technology for Radioprotection

    Energy Technology Data Exchange (ETDEWEB)

    Jo, Sung Kee; Byun, Myung Woo; Kim, Jin Kyu (and others)

    2003-05-15

    We have previously developed two medicinal herb mixtures that protects immune/hematopoietic system and self-renewal tissues against irradiation and enhances immune/hematopoietic functions. In this study, we have developed two pilot products by adding the effective fractions to the hot water extract of the herb mixtures and investigated their efficacy. In irradiated mice, pilot products protected hematopoietic stem cells, promoted the regeneration and activation of immune cells, normalized the unbalanced immune reaction, and inhibited the growth of cancer cells. Polysaccharide was active fraction and mechanisms were elucidated. The products also protected the stem cells in self-renewal tissues. DNA/membrane damages, apoptotic cell signals, chromosome/DNA alterations, and oxidation of protein/lipid were inhibited by pilot products, and their radical scavenging activities were observed. Five active components were isolated and identified. Pilot products also inhibited the cancer development by 30% in irradiated mice. In clinical investigation, pilot products inhibited the side-effects of cancer therapy including immune/hematopoietic depression. Therefore, the pilot products may be used as functional foods for overcoming of immune/hematopoietic depression and self-renewal tissue damages induced by irradiation, as well as for the immune/hematopoietic enhancement. Also we have screened food materials for inhibition of radiation-induced chronic damage (carcinogenesis), and selected effective 4 materials and elicited two mixture preparations with enhanced activity, and confirmed their inhibitory activities in cancer initiation model systems. To obtain the applicability of radiation technology for the safe sanitation and distribution of functional food materials, we verified the toxicological safety, stability of activity and active components of irradiated medicinal herbs. Also, screening of new radioprotective materials and basic biological research for the enhancement of

  16. Utility of DF-1 for Radioprotection in Lymphocytes

    Science.gov (United States)

    Reynolds, Julia; Casey, Rachael; Wu, Honglu; Huff, Janice; Emami, Kamal; Moore, Valerie; Jeevarajan, Antony

    2007-01-01

    The development of degenerative changes in the vasculature, such as atherosclerosis, is a known consequence of exposure to ionizing radiation, and is thus a concern for astronaut health following long duration space flight. Cellular damage caused by radiation is due to free radical generation and DNA damage. The goal of this project was to assess the ability of a C60-derivative, DF-1, to mitigate cellular damage resulting from radiation exposure in primary human lymphocytes. DF-1 is a water-soluble C60 fullerene encapsulated in dendrimeric functional groups that is proposed to exhibit antioxidant properties. Human lymphocytes are radiosensitive and travel throughout the body potentially causing bystander effects in any tissues they contact. These cells were subjected to varying doses of gamma radiation in the presence or absence of DF-1. Cells were collected at 48 hours post-irradiation for chromosomal aberration studies and at 72 hours post-irradiation for micronuclei studies. These studies showed that the irradiated cells contained more chromosomal aberrations and micronuclei than the control cells. Addition of the DF-1 reduced the amount of observed DNA damage in the irradiated cells. Growth curves were measured for the lymphocytes exposed to 0 and 4 Gray gamma irradiations, and we observed less growth in the cells irradiated at 4 Gy. 2,7-dichlorofluorescein diacetate was used to detect reactive oxygen species production, and increased production of ROS was observed in the irradiated lymphocytes. Human lymphocytes were subjected to varying doses of gamma or photon radiation in the presence and absence of DF-1 and a known radioprotectant, amifostine. After irradiation, the production of reactive oxygen species, growth curves and cell viability were measured. These cells were also collected to quantify chromosomal aberrations and micronuclei formation. We predict that irradiated cells will show the most damage and that DF-1 will provide protective effects similar

  17. In vitro screening of radioprotective properties in the novel glucosylated flavonoids.

    Science.gov (United States)

    Yu, Hao; Haskins, Jeremy S; Su, Cathy; Allum, Allison; Haskins, Alexis H; Salinas, Victoria A; Sunada, Shigeaki; Inoue, Taisuke; Aizawa, Yasushi; Uesaka, Mitsuru; Kato, Takamitsu A

    2016-11-01

    Novel glucosyl flavonoids are developed by the addition of glucose to naturally occurring flavonoids. Flavonoids are known antioxidants that possess radioprotective properties. In order to investigate the radioprotective properties of novel glucosyl flavonoids, in vitro DNA double-strand breaks (DSBs) analysis was carried out. In the present study, Quercetin, Naringenin, and Hesperetin groups of flavonoids included in the natural and novel glucosyl 13 flavonoids were investigated. Flavonoids were mixed with Lambda DNA, and subsequently exposed to gamma‑rays. Furthermore, DNA DSB yields were visualized by gel electrophoresis. Quercetin derivatives displayed reduced DNA DSB formation at 10 µM. At a high concentration, the majority of flavonoids displayed radioprotective properties as a reduction of DSB yields. Suppression of DSB formation was confirmed via the molecular combing assay for Quercetin, and three monoglucosyl flavonoids. Glucosylation showed positive effects for radioprotection and monoglucosyl-Rutin showed superior radioprotective properties when compared to monoglucosyl-Naringin and Hesperidin. In addition, Quercetin derivatives had greater total antioxidant capacities and DPPH radical scavenging ability than other flavonoid groups. Since Quercetin, Isoquercetin, and Rutin display poor water solubility, monoglucosyl-Rutin, maltooligosyl-Isoquercetin, and maltooligosyl-Rutin may be better radioprotective agents and easily bioavailable with increased water solubility.

  18. Fast and flexible: argentine ants recruit from nearby trails.

    Science.gov (United States)

    Flanagan, Tatiana P; Pinter-Wollman, Noa M; Moses, Melanie E; Gordon, Deborah M

    2013-01-01

    Argentine ants (Linepithema humile) live in groups of nests connected by trails to each other and to stable food sources. In a field study, we investigated whether some ants recruit directly from established, persistent trails to food sources, thus accelerating food collection. Our results indicate that Argentine ants recruit nestmates to food directly from persistent trails, and that the exponential increase in the arrival rate of ants at baits is faster than would be possible if recruited ants traveled from distant nests. Once ants find a new food source, they walk back and forth between the bait and sometimes share food by trophallaxis with nestmates on the trail. Recruiting ants from nearby persistent trails creates a dynamic circuit, like those found in other distributed systems, which facilitates a quick response to changes in available resources.

  19. Fast and flexible: argentine ants recruit from nearby trails.

    Directory of Open Access Journals (Sweden)

    Tatiana P Flanagan

    Full Text Available Argentine ants (Linepithema humile live in groups of nests connected by trails to each other and to stable food sources. In a field study, we investigated whether some ants recruit directly from established, persistent trails to food sources, thus accelerating food collection. Our results indicate that Argentine ants recruit nestmates to food directly from persistent trails, and that the exponential increase in the arrival rate of ants at baits is faster than would be possible if recruited ants traveled from distant nests. Once ants find a new food source, they walk back and forth between the bait and sometimes share food by trophallaxis with nestmates on the trail. Recruiting ants from nearby persistent trails creates a dynamic circuit, like those found in other distributed systems, which facilitates a quick response to changes in available resources.

  20. Malvinas: the Argentine Perspective of the Falkland’s Conflict

    Science.gov (United States)

    2010-05-01

    commando operations was the book written by Isidoro Ruiz Moreno: Comandos en Accion . Munoz, Chacho, and Garasino‘s Malvinas; Album de Campana; Nora...defense of the Malvinas.32 The plan recognized that Argentina would face some difficulties defending the islands without the development of...significant military infrastructure and capabilities in the theatre. The defense plan was received on the 23rd of April 1982 by the Argentine Governor of

  1. Calculation codes in radioprotection, radio-physics and dosimetry; Codes de calcul en radioprotection, radiophysique et dosimetrie

    Energy Technology Data Exchange (ETDEWEB)

    Jan, S.; Laedermann, J.P.; Bochud, F.; Ferragut, A.; Bordy, J.M.; Parisi, L.L.; Abou-Khalil, R.; Longeot, M.; Kitsos, S.; Groetz, J.E.; Villagrasa, C.; Daures, J.; Martin, E.; Henriet, J.; Tsilanizara, A.; Farah, J.; Uyttenhove, W.; Perrot, Y.; De Carlan, L.; Vivier, A.; Kodeli, I.; Sayah, R.; Hadid, L.; Courageot, E.; Fritsch, P.; Davesne, E.; Michel, X.

    2010-07-01

    This document gathers the slides of the available presentations given during these conference days. Twenty seven presentations are assembled in the document and deal with: 1 - GATE: calculation code for medical imaging, radiotherapy and dosimetry (S. Jan); 2 - estimation of conversion factors for the measurement of the ambient dose equivalent rate by in-situ spectroscopy (J.P. Laedermann); 3 - geometry specific calibration factors for nuclear medicine activity meters (F. Bochud); 4 - Monte Carlo simulation of a rare gases measurement system - calculation and validation, ASGA/VGM system (A. Ferragut); 5 - design of a realistic radiation field for the calibration of the dosemeters used in interventional radiology/cardiology (medical personnel dosimetry) (J.M. Bordy); 6 - determination of the position and height of the KALINA facility chimney at CEA Cadarache (L.L. Parisi); 7 - MERCURAD{sup TM} - 3D simulation software for dose rates calculation (R. Abou-Khalil); 8 - PANTHERE - 3D software for gamma dose rates simulation of complex nuclear facilities (M. Longeot); 9 - radioprotection, from the design to the exploitation of radioactive materials transportation containers (S. Kitsos); 10 - post-simulation processing of MCNPX responses in neutron spectroscopy (J.E. Groetz); 11 - last developments of the Geant4 Monte Carlo code for trace amounts simulation in liquid water at the molecular scale (C. Villagrasa); 12 - Calculation of H{sub p}(3)/K{sub air} conversion coefficients using PENELOPE Monte-Carlo code and comparison with MCNP calculation results (J. Daures); 13 - artificial neural networks, a new alternative to Monte Carlo calculations for radiotherapy (E. Martin); 14 - use of case-based reasoning for the reconstruction and handling of voxelized fantoms (J. Henriet); 15 - resolution of the radioactive decay inverse problem for dose calculation in radioprotection (A. Tsilanizara); 16 - use of NURBS-type fantoms for the study of the morphological factors influencing

  2. Assessment in vitro of radioprotective efficacy of curcumin and resveratrol

    Energy Technology Data Exchange (ETDEWEB)

    Sebastia, Natividad, E-mail: natividad.sebastia@uv.es [Area de Nutricion y Bromatologia, Facultat de Farmacia, Universitat de Valencia, Av. Vicent Andres Estelles s/n, 46100 Burjassot (Spain); Montoro, Alegria [Servicio de Proteccion Radiologica, Hospital Universitario La Fe, 46009, Valencia (Spain); Montoro, Amparo [Area de Nutricion y Bromatologia, Facultat de Farmacia, Universitat de Valencia, Av. Vicent Andres Estelles s/n, 46100 Burjassot (Spain); Almonacid, Miguel; Villaescusa, Juan Ignacio [Servicio de Proteccion Radiologica, Hospital Universitario La Fe, 46009, Valencia (Spain); Cervera, Jose; Such, Esperanza; Silla, Ma Angeles [Servicio de Hematologia, Hospital Universitario La Fe, 46009, Valencia (Spain); Soriano, Jose Miguel [Area de Nutricion y Bromatologia, Facultat de Farmacia, Universitat de Valencia, Av. Vicent Andres Estelles s/n, 46100 Burjassot (Spain)

    2011-09-15

    Many natural substances have been studied in recent past to be used as radioprotectors to mitigate ionizing radiation-induced damage in mammalian systems due to its effectiveness given both pre- and post-irradiation and for long time with out drug-related toxicity. Curcumin and trans-resveratrol are both natural occurring polyphenols, obtained from the root of Curcuma longa and from grapes and other berries, respectively. These compounds have shown antioxidant, anti-inflammatory, immunostimulant and anti-carcinogenic properties. Our aim was to evaluate the radioprotective efficacy, in vitro, of curcumin and trans-resveratrol separately against radiation-induced chromosomal aberrations. The study was carried out by the pre-treatment of human blood lymphocytes at concentrations from 0 to 500 {mu}g mL{sup -1} and from 0 to 50 {mu}g mL{sup -1} for curcumin and trans-resveratrol, respectively. The results showed that all concentrations tested reduced radiation-induced chromosomal damage. Maximum damage protection was observed at the concentration of 5 {mu}g mL{sup -1} for curcumin and 0.5 {mu}g mL{sup -1} for trans-resveratrol. Thus, our results show that curcumin and trans-resveratrol pre-treatment significantly protect normal lymphocytes against {gamma}-radiation-induced cellular damage.

  3. Study on induction of radioprotection using antioxidant combinations

    Energy Technology Data Exchange (ETDEWEB)

    Lim, J. S.; Choe, Y. K.; Lee, H. G.; Kim, K. D. [Korea Research Institute of Bioscience and Biotechnology, Taejeon (Korea)

    2000-04-01

    Antioxidants are applied in tumor patients during chemo- or radiotherapy due to its cytoprotective effects. Therefore, aim of our study was to evaluate the effect of exposure with a variety of antioxidants on primary bone marrow cells after {gamma}-irradiation. We studied the radiation-induced cell death in comparison to mouse bone marrow cells after single-dose irradiation with 1, 2, 3 or 6 Gy and controls without irradiation. Cells cultured in vitro had been exposed to different concentrations of antioxidants prior to {gamma}-irradiation. The effect was evaluated 6, 8, 17 or 24 h after radiation exposure by propium iodide staining. While sodium selenite and N-acetylcyseine could achieve significant inhibition of radiation-induced cell death, aminoguanidine and alpha-lipoic acid were not shown to inhibit it. Furthermore, the combination of N-acetylcysteine with some mild antioxidants such as BHA, propyl gallate, quercetin or trolox induced the significant inhibition of radiation-induced cell death. However, these effect was different depending on the duration of radiation exposure and the concentration of antioxidants added in culture. Although the radioprotective effect of antioxidants should be compared with the effect on tumor itself, our results indicate that the use of antioxidants in combination can efficiently modulate the radiation-induced cell damage like apoptosis and can be applied in tumor patients during radiotherapy. 26 refs., 7 figs., 7 tabs. (Author)

  4. Radioprotection of tendon tissue via crosslinking and free radical scavenging.

    Science.gov (United States)

    Seto, Aaron; Gatt, Charles J; Dunn, Michael G

    2008-08-01

    Ionizing radiation could supplement tissue bank screening to further reduce the probability of diseases transmitted by allografts if denaturation effects can be minimized. It is important, however, such sterilization procedures be nondetrimental to tissues. We compared crosslinking and free radical scavenging potential methods to accomplish this task in tendon tissue. In addition, two forms of ionizing irradiation, gamma and electron beam (e-beam), were also compared. Crosslinkers included 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide (EDC) and glucose, which were used to add exogenous crosslinks to collagen. Free radical scavengers included mannitol, ascorbate, and riboflavin. Radioprotective effects were assessed through tensile testing and collagenase resistance testing after irradiation at 25 kGy and 50 kGy. Gamma and e-beam irradiation produced similar degenerative effects. Crosslinkers had the highest strength at 50 kGy, EDC treated tendons had 54% and 49% higher strength than untreated, for gamma and e-beam irradiation respectively. Free radical scavengers showed protective effects up to 25 kGy, especially for ascorbate and riboflavin. Crosslinked samples had higher resistance to collagenase and over a wider dose range than scavenger-treated. Of the options studied, the data suggest EDC precrosslinking or glucose treatment provides the best maintenance of native tendon properties after exposure to ionizing irradiation.

  5. Autism Society

    Science.gov (United States)

    ... En Español Register today for the 49th Annual Autism Society National Conference Please plan on joining us ... Today Improving the lives of all affected by autism. The Autism Society is the nation's leading grassroots ...

  6. Radioprotective effects of a preparation (HemoHIM) of a herb mixture

    Energy Technology Data Exchange (ETDEWEB)

    Jo, Sung Kee; Park, Hae Ran; Jung, U Hee; Jeong, Ill Yun; Byun, Myung Woo [Korea Atomic Energy Research Institute, Taejon (Korea, Republic of); Kim, Sung Ho [Chonnam National University, Kwangju (Korea, Republic of); Yee, Sung Tae [Sunchon National University, Sunchon (Korea, Republic of)

    2004-07-01

    The proliferation of radioactive materials in industry, medicine, scientific and medical research, the military, and as a source of energy has increased the likelihood of an accidental exposure to ionizing radiation. Synthetic radioprotective agents have been studied for decades but their application was limited due to their toxicity. Thus, the radioprotective agent to protect individuals against severe radiation damage is required. A preparation (HemoHIM) of a mixture of 3 edible herbs was designed to protect the gastrointestine and hematopoietic organs and to promote recovery of the immune system against radiation damage. In this study, we evaluated its radioprotective effects with regards to reduction of DNA damage, immune cell repopulation, intestinal crypt survival, and 30-day survival rate.

  7. Biochemical and molecular genetic approaches on the radioprotective mechanism of natural products

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Jeong Hee; Lee, Eun Ju; Sung, Woo Kyung; Piao, Wen Hua [Kyunghee University, Seoul (Korea)

    1999-04-01

    We reported the radio-protective effect of DTT. The treatment of DTT increased cell survival after gamma-irradiation, decreased in the frequencies of micronucleus, and reduction in DNA fragmentation and apoptotic cells. Induction of apoptosis after UV-C irradiation was revealed by the changes in the relative cell death, increase in the relative amount of apoptotic cells, and the induction of DNA fragmentation. About 100 medicinal plants were purchased and methanol extract samples were prepared. Radio-protective and radio-sensitizing activities of these samples were screened. Seven samples showed above 20% radio-protective activities: Salvia miltiorrhiza, Areca catechu, Cornus officinalis, Alpiniae officinari rhizoma, Meliae fructus, Alpiniae katsumadaii semen, Betulae cortex. Acanthopanax sessiliflous showed the highest radio-sensitizing effect and 10 other samples revealed moderate activities: Melia japonica, Agastache rugosa, Platycodon gradiflorum, Broussonetia bazinoki, Angelica gigas, Inula helenium, Chelidonium majus, Pulsatilla koreana, Oldenlandia diffusa, Dioscorea batatas. (author). 49 refs., 9 figs., 7 tabs.

  8. Radioprotection of the rat parotid gland by WR-2721 and isoproterenol and its modification by propranolol

    Energy Technology Data Exchange (ETDEWEB)

    Sodicoff, M.; Conger, A.D.

    1983-04-01

    The aminothiol WR-2721 and ..beta..-adrenergic agonist isoproterenol both conferred considerable radioprotection to the rat parotid gland. Isoproterenol acts on the ..beta..-receptor, and its specific antagonist, propranolol, eliminated isoproterenol's protective effect, implicating the ..beta..-receptor and possibly cAMP in the mechanism of the protection. Since other sulfhydryl-containing protectants have been shown to elevate cAMP it was reasoned that WR-2721 might do so as well. However, the radioprotection conferred by WR-2721 was not reduced by propranolol, showing that the ..beta..-receptor played no part in WR-2721's action. The possible role of cAMP in radioprotection by isoproterenol is discussed.

  9. Trail Pheromone Disruption of Argentine Ant Trail Formation and Foraging

    Science.gov (United States)

    Suckling, D.M.; Peck, R.W.; Stringer, L.D.; Snook, K.; Banko, P.C.

    2010-01-01

    Trail pheromone disruption of invasive ants is a novel tactic that builds on the development of pheromone-based pest management in other insects. Argentine ant trail pheromone, (Z)-9-hexadecenal, was formulated as a micro-encapsulated sprayable particle and applied against Argentine ant populations in 400 m2 field plots in Hawai'i Volcanoes National Park. A widely dispersed point source strategy for trail pheromone disruption was used. Traffic rates of ants in bioassays of treated filter paper, protected from rainfall and sunlight, indicated the presence of behaviorally significant quantities of pheromone being released from the formulation for up to 59 days. The proportion of plots, under trade wind conditions (2-3 m s-1), with visible trails was reduced for up to 14 days following treatment, and the number of foraging ants at randomly placed tuna-bait cards was similarly reduced. The success of these trail pheromone disruption trials in a natural ecosystem highlights the potential of this method for control of invasive ant species in this and other environments. ?? Springer Science+Business Media, LLC 2010.

  10. The First Molecular Characterization of Picocyanobacteria from the Argentine Sea

    Directory of Open Access Journals (Sweden)

    Macarena Perez-Cenci

    2014-01-01

    Full Text Available Picocyanobacteria are abundant throughout the world’s oceans. Particularly, it has been reported that Synechococcus strains have a wide latitudinal distribution, from polar to tropical waters. However, their molecular characterization in the Southwest Atlantic Ocean is still missing. We analyzed Synechococcus genetic diversity in a sector of the Argentine Sea, one of the richest biological areas of the world oceans. 16S rRNA amplicons obtained after PCR amplification of environmental DNA extracted from water samples of this area were used for DGGE and sequenced. Only Synechococcus sequences could be retrieved. On the other hand, we isolated two Synechococcus strains from the environment. Our analyses revealed that the clade I group was widespread from latitude 38°S to 48°S and that can coexist with clade IV strains in shelf waters. The cooccurrence of these two clades may be related to an adaptation to high-nutrient/low-temperature waters. Our data are the first report on Synechococcus ecotypes that would be important contributors to phytoplankton biomass in the Argentine Sea, one of the richest biological areas of the world oceans.

  11. New mutualism for old: indirect disruption and direct facilitation of seed dispersal following Argentine ant invasion.

    Science.gov (United States)

    Rowles, Alexei D; O'Dowd, Dennis J

    2009-01-01

    The indirect effects of biological invasions on native communities are poorly understood. Disruption of native ant communities following invasion by the Argentine ant (Linepithema humile) is widely reported to lead indirectly to the near complete collapse of seed dispersal services. In coastal scrub in southeastern Australia, we examined seed dispersal and handling of two native and two invasive alien plant species at Argentine ant-invaded or -uninvaded sites. The Argentine ant virtually eliminates the native keystone disperser Rhytidoponera victoriae, but seed dispersal did not collapse following invasion. Indeed, Argentine ants directly accounted for 92% of all ant-seed interactions and sustained overall seed dispersal rates. Nevertheless, dispersal quantity and quality among seed species differed between Argentine ant-invaded and -uninvaded sites. Argentine ants removed significantly fewer native Acacia retinodes seeds, but significantly more small seeds of invasive Polygala myrtifolia than did native ants at uninvaded sites. They also handled significantly more large seeds of A. sophorae, but rarely moved them >5 cm, instead recruiting en masse, consuming elaiosomes piecemeal and burying seeds in situ. In contrast, Argentine ants transported and interred P. myrtifolia seeds in their shallow nests. Experiments with artificial diaspores that varied in diaspore and elaiosome masses, but kept seed morphology and elaiosome quality constant, showed that removal by L. humile depended on the interaction of seed size and percentage elaiosome reward. Small diaspores were frequently taken, independent of high or low elaiosome reward, but large artificial diaspores with high reward instead elicited mass recruitment by Argentine ants and were rarely moved. Thus, Argentine ants appear to favour some diaspore types and reject others based largely on diaspore size and percentage reward. Such variability in response indirectly reduces native seed dispersal and can directly

  12. Radio-protective effect of some new curcumin analogues.

    Science.gov (United States)

    El-Gazzar, Marwa G; Zaher, Nashwa H; El-Hossary, Ebaa M; Ismail, Amel F M

    2016-09-01

    In the present study, novel symmetrical curcumin analogues (2-7) have been synthesized by substituting the phenolic OH of curcumin with different linkers providing additional keto-enol tautomerism, very essential for radioprotective activity. The structures of the synthesized compounds (2-7) were elucidated by elemental analysis, IR, (1)H-NMR, (13)C-NMR and mass spectral data and were found consistent with the assigned structures. The curative effect of these new compounds, against the oxidative stress due to exposure of rats to the whole body γ-irradiation (7Gy) was investigated. Gamma-irradiated rats exhibited elevations of ALT, AST activities, urea, creatinine, triglycerides, total cholesterol, malondialdehyde (MDA), nitric oxide (NO), Interleukin-6 (IL-6), Tumor Necrosis Factor-α (TNF-α) and Nuclear Factor-kappa B (NF-κB) levels. Contrariwise, the total protein, albumin, total calcium level, SOD, CAT, GSH-Px, GST activities and GSH content were decreased. Treatment of gamma-irradiated rats with the new curcumin analogues (2-7) showed significant amelioration in the in-vivo antioxidant status, liver and kidney functions, as well as the anti-inflammatory markers (IL-6, TNF-α and NF-κB). Inhibition of NF-κB could be responsible for the improvement of the antioxidant and anti-inflammatory status in gamma-irradiated animals, by down-regulation of IL-1β and TNF-α level. In conclusion, the new curcumin analogues (2-7) exhibited post-protective effect on gamma-irradiation, by NF-κB inhibition.

  13. Radioprotective effects of ON 01210.Na upon oral administration.

    Science.gov (United States)

    Suman, Shubhankar; Datta, Kamal; Doiron, Kathryn; Ren, Chen; Kumar, Ramesh; Taft, David R; Fornace, Albert J; Maniar, Manoj

    2012-01-01

    ON 01210.Na (Ex-RAD), a chlorobenzylsulfone derivative was investigated for its pharmacologic and radioprotective properties when administered via oral and subcutaneous (SC) routes. The goals of the study were to assess the comparative bioavailability of ON 01210.Na when administered by oral versus SC routes and to demonstrate that the oral drug delivery of ON 01210.Na afforded survival advantage similar to SC dosing. Pharmacokinetics was studied after two doses, 24 h apart, of ON 01210.Na (500 mg/kg) administered to male C3H/Hen mice (7-9 weeks) via SC injection or oral route. The dose response (100 to 750 mg/kg) and survival advantage of ON 01210.Na administered at 24 h and 15 min prior to 7.5 or 8 Gy whole body irradiation from a ¹³⁷Cs source (dose rate 1 Gy/min) were studied in these mice. Effects on the hematopoietic system were investigated by complete blood count and granulocyte-macrophage colony forming unit assay. A significant survival advantage and hematopoietic protection were observed after prophylactic oral ON 01210.Na and results were comparable to SC administration. These findings correlated well with pharmacokinetic data. Both SC and oral ON 01210.Na showed significant survival advantage against radiation toxicity and ON 01210.Na mediated hematopoietic protection plays key role in enhanced survival of mice. Oral administration holds better clinical promise as an effective countermeasure not only for early-responders in a nuclear accident, but also for the at-risk civilian population.

  14. Planetary Society

    Science.gov (United States)

    Murdin, P.

    2000-11-01

    Carl Sagan, Bruce Murray and Louis Friedman founded the non-profit Planetary Society in 1979 to advance the exploration of the solar system and to continue the search for extraterrestrial life. The Society has its headquarters in Pasadena, California, but is international in scope, with 100 000 members worldwide, making it the largest space interest group in the world. The Society funds a var...

  15. Study of the radioprotective effects of TMG on teratogenic malformations in irradiated mice

    Energy Technology Data Exchange (ETDEWEB)

    Gu, Yeunhwa; Hasegawa, Takeo; Suzuki, Ikukatsu; Mori, Takehiko; Yamamoto, Youichi [Suzuka Univ. of Medical Science, Mie (Japan); Kim, Hwakon

    2000-12-01

    ICR mice fetuses in the organogenesis stage were used to clarify experimentally the mechanism of the protective effect of vitamin E derivant (TMG: 2- ({alpha}-D-Glucopyranosyl) methyl-2, -5, -7, -8-Teramethylchorman-6-working woman) on the effects of radiation. The authors paid careful attention to radiation, and the radioprotective effects of TMG on the induction of malformations was examined. Radiation is an important consideration because of its widespread use in the areas of medicine, nuclear energy, and industry. Malformations induced by radiation at the organogenesis stage, skeletal malformations, and the effects at the cellular level of embryos were examined in this research. Further, the mechanism of the protection effect of TMG against radiation-induced malformations was analyzed and observed experimentally. Thus, this study was done to provide fundamental data on the radioprotective agent TMG. It was clear that TMG exerted radioprotective effects against embryonic death and the rate of teratogenesis when administered before exposure. Such effects were also exerted against skeletal malformations and fetal body weight. In summary, radioprotective effects were observed at the whole-body level as well as at the cellular level. (author)

  16. Radioprotective Effect of Lidocaine on Function and Ultrastructure of Salivary Glands Receiving Fractionated Radiation

    Energy Technology Data Exchange (ETDEWEB)

    Hakim, Samer George, E-mail: samer.hakim@mkg-chir.mu-luebeck.de [Department of Oral and Maxillofacial Surgery, University of Luebeck, Luebeck (Germany); Benedek, Geza Attila [Department of Oral and Maxillofacial Surgery, University of Luebeck, Luebeck (Germany); Su Yuxiong [Department of Oral and Maxillofacial Surgery, University of Luebeck, Luebeck (Germany); Department of Oral and Maxillofacial Surgery, Sun Yat-Sen University, Guanghua School of Stomatology, Guanghua (China); Jacobsen, Hans Christian [Department of Oral and Maxillofacial Surgery, University of Luebeck, Luebeck (Germany); Klinger, Matthias [Institute of Anatomy, University of Luebeck, Luebeck (Germany); Dendorfer, Andreas [Institute of Experimental and Clinical Pharmacology and Toxicology, University of Luebeck, Luebeck (Germany); Hemmelmann, Claudia [Institute of Medical Biometry and Statistics, University of Luebeck, Luebeck (Germany); Meller, Birgit [Department of Radiology and Nuclear Medicine, University of Luebeck, Luebeck (Germany); Nadrowitz, Roger; Rades, Dirk [Department of Radiation Oncology, University of Luebeck, Luebeck (Germany); Sieg, Peter [Department of Oral and Maxillofacial Surgery, University of Luebeck, Luebeck (Germany)

    2012-03-15

    Purpose: Radiation-induced xerostomia still represents a common side effect after radiotherapy for head-and-neck malignancies. The aim of the present study was to examine the radioprotective effect of lidocaine hydrochloride during fractionated radiation in an experimental animal model. Methods and Materials: To evaluate the influence of different radiation doses on salivary gland function and the radioprotective effect of lidocaine, rabbits were irradiated with 15, 25, 30, and 35 Gy (equivalent doses in 2-Gy fractions equivalent to 24, 40, 48, and 56 Gy, respectively). Lidocaine hydrochloride (10 and 12 mg/kg) was administered before every radiation fraction in the treatment groups. Salivary gland function was assessed by flow sialometry and sialoscintigraphy, and the morphologic changes were evaluated using transmission electron microscopy. Results: Functional impairment was first observed after 35 Gy and pretreatment with lidocaine improved radiation tolerance of both parotid and submandibular glands. The use of 12 mg/kg lidocaine was superior and displayed significant radioprotection with regard to flow sialometry and sialoscintigraphy. The ultrastructure was largely preserved after pretreatment with both lidocaine doses. Conclusions: Lidocaine represents an effective radioprotective agent and a promising approach for clinical application to avoid radiation-induced functional impairment of salivary glands.

  17. Antibiotic sensitivity of an Argentine strain collection of Moraxella bovis.

    Science.gov (United States)

    Zielinski, G; Piscitelli, H; Perez-Monti, H; Stobbs, L A

    2000-01-01

    The antimicrobial susceptibility of 88 isolates of Moraxella bovis of Argentine origin was evaluated for 12 antimicrobials by broth microdilution procedures. The isolates had a minimum inhibitory concentration (MIC90) of or = 32 microg/mL to lincomycin. Modal MIC values for these antimicrobials were as follows: enrofloxacin, 0.03 microg/mL; ceftiofur, 0.06 pg/mL; ampicillin, 0.25 microg/mL; florfenicol, gentamicin, erythromycin, and oxytetracycline, 0.5 microg/mL; tilmicosin, 1.0 microg/mL; tylosin and spectinomycin, 4.0 microg/mL; lincomycin and erythromycin, 16 microg/mL; and trimethoprim/ sulfamethoxazole, < or = 0.25/4.75 microg/mL. These data show that all antimicrobials except lincomycin have MICs suggestive of sensitivity in vitro, though confirmation of clinical efficacy can only be properly assessed based on pharmacologic and/or clinical data to support the MIC values.

  18. Assessment of the Applicability of Total Quality Leadership into the Argentine Army.

    Science.gov (United States)

    1995-03-01

    LEADERSHIP INTO THE ARGENTINE ARMY by Gustavo A. Landa Major, Argentine Army Engineer, Escuela Superior Tecnica , 1990 Submitted in partial fulfillment...needed to check the population reality. Different mental model [Ref 16:p. 174] may be present in the minds of the Generals. Operational definitions (see... mental model at every level. * Current promotion system does not encourage self-education. * Some possible degree of lack of confidence from senior

  19. Networks in Argentine agriculture: a multiple-case study approach

    Directory of Open Access Journals (Sweden)

    Sebastián Senesi

    2013-06-01

    Full Text Available Argentina is among the four largest producers of soybeans, sunflower, corn, and wheat, among other agricultural products. Institutional and policy changes during the 1990s fostered the development of Argentine agriculture and the introduction of innovative process and product technologies (no-till, agrochemicals, GMO, GPS and new investments in modern, large-scale sunflower and soybean processing plants. In addition to technological changes, a "quiet revolution" occurred in the way agricultural production was carried out and organized: from self-production or ownership agriculture to a contract-based agriculture. The objective of this paper is to explore and describe the emergence of networks in the Argentine crop production sector. The paper presents and describes four cases that currently represent about 50% of total grain and oilseed production in Argentina: "informal hybrid form", "agricultural trust fund", "investor-oriented corporate structure", and "network of networks". In all cases, hybrid forms involve a group of actors linked by common objectives, mainly to gain scale, share resources, and improve the profitability of the business. Informal contracts seem to be the most common way of organizing the agriculture process, but using short-term contracts and sequential interfirm collaboration. Networks of networks involve long-term relationships and social development, and reciprocal interfirm collaboration. Agricultural trust fund and investor-oriented corporate structures have combined interfirm collaboration and medium-term relationships. These organizational forms are highly flexible and show a great capacity to adapt to challenges; they are competitive because they enjoy aligned incentives, flexibility, and adaptability.

  20. Web application for the control and management of radioprotection equipment in the Cadarache centre; Application WEB pour le controle et la gestion des appareils de radioprotection sur le centre de Cadarache

    Energy Technology Data Exchange (ETDEWEB)

    Anon.

    2010-07-01

    The author describes a web 2-type application which has been developed for the periodic calibration controls of radioprotection equipment in Cadarache. This application aims at offering an easy and immediate and even remote access to information, at selecting information with respect to uses (radioprotection department, administrator, and so on), at securing and safeguarding homogeneous data, at editing control statistics. The different functionalities are briefly presented with their displayed interface

  1. On the radioprotective properties of heterocyclic nitrogenous compounds; Etude des proprietes radioprotectrices de composes heterocycliques azotes

    Energy Technology Data Exchange (ETDEWEB)

    Rinaldi, R.; Bernard, Y. [Commissariat a l' Energie Atomique, Grenoble (France). Centre d' Etudes Nucleaires

    1964-07-01

    Continuing their study of the possible radioprotective properties of heterocyclic nitrogenous compounds, the authors study certain derivatives of imidazole and other compounds of similar structure. The results obtained showed: 1 - that the derivatives resulting from the presence in the imidazole ring of the mercapto, methyl, carbonyl, or benzyl groups are inactive: these substitutions appear to destroy the significant radioprotective activity of the imidazole, 2 - that benzimidazole, on the contrary, seems to possess highly interesting properties. The percentage of survivals obtained with mice treated with benzimidazole and exposed to lethal irradiation has encouraged the authors to undertake careful study of this substance, with a view to define optimum activity conditions, and to determine the mechanism responsible for its radioprotective action. Further on and so as to of clarify certain points that might give useful data concerning the mechanisms of action of radioprotective chemicals, in respect of each of the products the authors have studied: a - the action of these bodies on the internal temperature of mice, b - their radioprotective activity in vitro, in a solution of irradiated hemin. (authors) [French] Les proprietes radioprotectrices de l'imidazole ayant ete mises en evidence dans un precedent travail, les auteurs poursuivent leur experimentation sur certains derives de ce noyau ainsi que des composes de structure voisine. Leurs resultats montrent: 1 - que les composes obtenus par substitution d'un groupement mercapto, methyle, carbonyle ou benzyle, a un hydrogene du noyau imidazole sont inactifs, 2 - que le benzimidazole presente par contre des proprietes interessantes. Pour ce dernier compose le pourcentage de survie pouvant atteindre 90 pour cent les auteurs ont determine les conditions optimales de son activite radioprotectrice; de plus, dans le but d'obtenir des renseignements susceptibles de preciser le mecanisme d'action de la

  2. Radioprotective cerium oxide nanoparticles: Molecular imaging investigations of conps' pharmacokinetics, efficacy, and mechanisms of action

    Science.gov (United States)

    McDonagh, Philip Reed Wills, III

    Cerium oxide nanoparticles (CONPs) are being investigated for several anti-oxidant applications in medicine. One of their most promising applications is as a radioprotective drug, an area of research in need due to the severe side effects from radiation therapy. In this work, the potential of CONPs as a radioprotective drug is examined using four criteria: favorable biodistribution/pharmacokinetics, low toxicity, ability to protect normal tissue from radiation damage, and lack of protection of tumor. The mechanisms of action of CONPs are also studied. Biodistribution was determined in radiolabeled CONPs with surface coatings including citrate, dextran T10-amine (DT10-NH2), dextran T10-polyethylene glycol (DT10-PEG), dextran T10-sulfobetaine (DT10-SB) and poly(acrylic acid) (PAA), and compared to uncoated. 89Zr was incorporated into CONPs for positron emission tomography (PET) imaging and ex vivo tissue analysis in tumor bearing mice. Compared to uncoated [ 89Zr]CONPs, coated [89Zr]CONPs showed improved biodistribution, including significantly enhanced renal clearance of PAA- [89Zr]CONPs. The toxicity of CONPs was evaluated in vitro and in vivo, with low toxicity at therapeutic doses. After clinically mimetic radiation therapy, pre-treatment of mice with coated and uncoated CONPs showed greater than 50% reduction of cell death in normal colon tissue, comparable to the clinically available radioprotective drug amifostine. Tumor control after irradiation of spontaneous colon tumors was unchanged with PAA-CONP pre-treatment, while citrate, DT10-PEG, and uncoated CONP pre-treatment had slightly less tumor control. Xenograft tumors were irradiated after pH normalizing treatment with sodium bicarbonate and PAA-CONP pre-treatment. Treatment of these tumors showed slightly less tumor control than irradiation alone or PAA-CONP plus irradiation, demonstrating that the acidic pH of the tumor microenvironment may be the basis of preventing CONPs' radioprotective properties in

  3. Assessment of the Radioprotection Efficacy of Antioxidant Substances in Foods in regard to Clonogenic Cell Survival

    Energy Technology Data Exchange (ETDEWEB)

    Park, Hyosung; Lee, Minho; Kim, Eunhee [Seoul National Univ., Seoul (Korea, Republic of)

    2014-05-15

    Radiation is perceived as a hazard in spite of its diverse uses. The public are more sensitive than ever to the activities from the nuclear power plant industry since Fukushima accident and the consequential environment contamination. The never-dissolved fear from the public of the nuclear energy costs the nuclear industry too much for safety measures not to mention brings the public uneasy life. Beta carotene, oltipraz and luteolin, which are easily taken from various foods, are substances that may protect cells from damage caused by unstable molecules known as free radicals. The purpose of this study is to inform people of accessible radiation protection measures in everyday lives. Three antioxidant substances were investigated regarding their radioprotection effects counted in terms of clonogenic cell surviving fraction in vitro. The radioprotection efficacy was observed with those substances at concentrations below certain levels. At concentrations beyond those levels, the efficacy was canceled out by their inherent cytotoxicity.

  4. Radioprotective effects of Cordyceps sinensis extracts on {gamma}-irradiated mice

    Energy Technology Data Exchange (ETDEWEB)

    Yoo, Beong Gyu [Wongwang Health Science College, Iri (Korea, Republic of); Kim, On Joong; Kim, Jae Young [Dongguk University, Seoul (Korea, Republic of)

    1999-06-01

    Effect of single intraperitoneal administration of Cordyceps sinensis (Cs) extract at 24 hour before whole-body {gamma} - irradiation on the survival ratio, body weight, organ weight changes and serum metabolites in the irradiated mice were investigated. The single pre-administration of Cs extract increased the 40-day survival ration of irradiated mice from 66.7 percent to 83.4 percent. The administration of Cs extract completely prevented weight reductions of spleen and thymus produced by {gamma} - irradiation (P < 0.05, P < 0.01). Similar but somewhat less radioprotective effect was also found in the testis of the Cs treated mice. The administration of Cs inhibited the serum hyperglycemia produced by irradiation on the day 7th(P < 0.01). However, it did not influence the serum cholesterol and protein levels on the days examined. The present study is the first report regarding Cs which was tested and found to be radioprotective. (Author)

  5. El campo médico argentino y su mirada al tribadismo, 1936-1955 The medical argentine field and its look on the tribadism, 1936-1955

    Directory of Open Access Journals (Sweden)

    Karina Inés Ramacciotti

    2008-08-01

    Full Text Available Este artículo describe y analiza la articulación discursiva sobre el lesbianismo en el campo médico argentino entre 1936 y 1955. Las "verdades" de la medicina poseen una fuerza normativa que constituyen un lugar privilegiado para propiciar la aplicación del modelo heterosexual e imponer esta visión al resto de la sociedad. En primer lugar esbozaremos los argumentos médicos en el ámbito europeo por ser los referentes más recorridos por la elite médica argentina. Luego, analizaremos las relecturas y apropiaciones realizadas en el contexto argentino articulándolas con el modelo hegemónico heterosexual de feminidad.This article describes and analyzes the discursive articulation on the lesbianism in the medical Argentine field between 1936 and 1955. The "truths" of the medicine possess a normative force which constitutes a suitable place to favor the heterosexual model and to impose this point of view to the rest of the society. First we will outline the medical arguments in the European area. They were the most accessed models by the medical Argentine elite. Then, we will analyze the re-readings and appropriations realized in Argentina, articulating them with the hegemonic heterosexual model of femininity.

  6. Development of enhanced radioprotectors - Biochemical and molecular genetical approaches on the radioprotective mechanism of natural products

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Jeong Hee; Lee, Eun Ju; Hong, Jung A [Kyunghee University, Seoul (Korea)

    2000-04-01

    To identify radio-protective agent candidate among medicinal plants and to elucidate the mechanism of action of the candidate material by using modern biochemical and molecular biological methods, we screened radio-protective activity among 48 medicinal plants. Seven samples showed above 20% protective activities against oxidative cell damage: Euryale ferox, Glycyrrhiza uralensis, Salvia miltiorrhiza, Eucomia ulmoides, Paeonia suffruticosa, Spirodela polyrrhiza, and Nelumbo nucifera. We also screened for oxidative stress sensitizing activity among other 51 medicinal plants. Among those samples, 11 samples showed good sensitizing effect; Melia azedarach, Agastache rugosa, Catalpa ovata, Prunus persica, Sinomenium acutum, Pulsatilla koreana, Oldenlandia diffusa, Anthriscus sylvestris, Schizandra chinensis, Gleditsia sinensis, and Cridium officinale. We also reported the radio-protective effect of DTT. The treatment of DTT increased cell survival after gamma-irradiation, decreased in the frequencies of micronucleus, and reduction in DNA fragmentation and apoptotic cells. Induction of apoptosis after UV-C irradiation was revealed by the changes in the relative cell death, increase in the relative amount of apoptotic cells, and the induction of DNA fragmentation. 165 refs., 9 figs., 8 tabs. (Author)

  7. Study of radioprotective effect of the resveratrol;Estudo do efeito radioprotetor do resveratrol

    Energy Technology Data Exchange (ETDEWEB)

    Moreno, Carolina dos Santos

    2009-07-01

    Resveratrol (3,4,5 trihydroxystilbene), a phenolic phytoalexin occurring naturally in a wide variety of plants, such as grapevines, in response to injury as fungal infections and exposure to ultraviolet light. In the wines this compound is present at high levels and is considered one of the highest antioxidant constituents. This high capacity to scavenge the free radicals generated by several biologic processes by resveratrol can provide a prevention of human cardiovascular diseases and several types of cancer. The main objective of this study was to determine the in vitro radioprotective effect of resveratrol in cell culture with the aid of the tests of cytotoxicity of resveratrol (IC50%) and lethal dose 50% of gamma radiation (LD50). Studies of the level of resveratrol toxicity, found by cytotoxicity test performed by neutral red uptake assay, and lethal dose 50% (LD50) of gamma radiation from source of Cobalt-60 (Co-60) was performed in cell culture NCTC Clone 929 from ATCC. The IC50% of resveratrol was about 50 M/L. The DL50 of gamma radiation showed a value of about 354 Gy. On the basis of these biological results, it was performed studies of radioprotective effect of resveratrol on the same experimental conditions, verifying that the resveratrol in concentrations between 12.5 M/L and 25 M/L showed a more pronounced radioprotective effect. (author)

  8. Evaluation of the free radical scavenging activity and radioprotective efficacy of Grewia asiatica fruit

    Energy Technology Data Exchange (ETDEWEB)

    Sharma, Krishna V; Sisodia, Rashmi [Radiation Biology Laboratory, Department of Zoology, University of Rajasthan, Jaipur, Rajasthan-302055 (India)], E-mail: rashsisodia@yahoo.co.in

    2009-09-01

    The radioprotective effect of Grewia asiatica fruit (GAE) which contains anthocyanin-type cyanidin 3-glucoside, vitamins C and A, minerals, carotenes and dietary fibre was studied. For the study Swiss albino mice were divided into five groups: (1) control (vehicle treated); (2) GAE treated (700 mg kg{sup -1} day{sup -1} for 15 days); (3) irradiated (5 Gy); (4) GAE+irradiated and (5) irradiated+GAE treated. The irradiation of animals resulted in a significant elevation of lipid peroxidation in terms of thiobarbituric acid reactive substances (TBARS) content and depletion in glutathione (GSH) and protein levels at all intervals studied, namely 1-30 days, in comparison to the control group. Treatment of mice with GAE before and after irradiation caused a significant depletion in TBARS content followed by a significant elevation in GSH and protein concentration in the intestine and testis of mice at all post-irradiation autopsy intervals in comparison to irradiated mice. Significant protection of DNA and RNA in testis was also noticed. GAE was found to have strong radical scavenging activity in 2,2-diphenyl-1-picrylhydrazyl (DPPH{sup *}) and O{sub 2}{sup -} assays and also showed in vitro radioprotective activity in protein carbonyl assay in a dose-dependent manner. The above results prove the radioprotective efficacy of GAE.

  9. Evaluation of the free radical scavenging activity and radioprotective efficacy of Grewia asiatica fruit.

    Science.gov (United States)

    Sharma, Krishna V; Sisodia, Rashmi

    2009-09-01

    The radioprotective effect of Grewia asiatica fruit (GAE) which contains anthocyanin-type cyanidin 3-glucoside, vitamins C and A, minerals, carotenes and dietary fibre was studied. For the study Swiss albino mice were divided into five groups: (1) control (vehicle treated); (2) GAE treated (700 mg kg(-1) day(-1) for 15 days); (3) irradiated (5 Gy); (4) GAE+irradiated and (5) irradiated+GAE treated. The irradiation of animals resulted in a significant elevation of lipid peroxidation in terms of thiobarbituric acid reactive substances (TBARS) content and depletion in glutathione (GSH) and protein levels at all intervals studied, namely 1-30 days, in comparison to the control group. Treatment of mice with GAE before and after irradiation caused a significant depletion in TBARS content followed by a significant elevation in GSH and protein concentration in the intestine and testis of mice at all post-irradiation autopsy intervals in comparison to irradiated mice. Significant protection of DNA and RNA in testis was also noticed. GAE was found to have strong radical scavenging activity in 2,2-diphenyl-1-picrylhydrazyl (DPPH(*)) and O(2)(-) assays and also showed in vitro radioprotective activity in protein carbonyl assay in a dose-dependent manner. The above results prove the radioprotective efficacy of GAE.

  10. Insecticide transfer efficiency and lethal load in Argentine ants

    Energy Technology Data Exchange (ETDEWEB)

    Hooper-Bui, L.M. [Department of Environmental Science, Louisiana State University, Baton Rouge, LA 70803 (United States); Department of Entomology, University of California, Riverside, CA 92521 (United States); Kwok, E.S.C. [Department of Cell Biology and Neuroscience, University of California, Riverside, CA 92521 (United States); Buchholz, B.A., E-mail: buchholz2@llnl.gov [Center for Accelerator Mass Spectrometry, Lawrence Livermore National Laboratory, Livermore, CA 94551 (United States); Department of Environmental Toxicology, University of California, Davis, CA 95616 (United States); Rust, M.K. [Department of Entomology, University of California, Riverside, CA 92521 (United States); Eastmond, D.A. [Department of Cell Biology and Neuroscience, University of California, Riverside, CA 92521 (United States); Vogel, J.S. [Center for Accelerator Mass Spectrometry, Lawrence Livermore National Laboratory, Livermore, CA 94551 (United States)

    2015-10-15

    Trophallaxis between individual worker ants and the toxicant load in dead and live Argentine ants (Linepithema humile) in colonies exposed to fipronil and hydramethylnon experimental baits were examined using accelerator mass spectrometry (AMS). About 50% of the content of the crop containing trace levels of {sup 14}C-sucrose, {sup 14}C-hydramethylnon, and {sup 14}C-fipronil was shared between single donor and recipient ants. Dead workers and queens contained significantly more hydramethylnon (122.7 and 22.4 amol/μg ant, respectively) than did live workers and queens (96.3 and 10.4 amol/μg ant, respectively). Dead workers had significantly more fipronil (420.3 amol/μg ant) than did live workers (208.5 amol/μg ant), but dead and live queens had equal fipronil levels (59.5 and 54.3 amol/μg ant, respectively). The distribution of fipronil differed within the bodies of dead and live queens; the highest amounts of fipronil were recovered in the thorax of dead queens whereas live queens had the highest levels in the head. Resurgence of polygynous ant colonies treated with hydramethylnon baits may be explained by queen survival resulting from sublethal doses due to a slowing of trophallaxis throughout the colony. Bait strategies and dose levels for controlling insect pests need to be based on the specific toxicant properties and trophic strategies for targeting the entire colony.

  11. Active tectonics in the Argentine Precordillera and Western Sierras Pampeanas

    Directory of Open Access Journals (Sweden)

    L.L. Siame

    2006-12-01

    Full Text Available The Andean foreland of western Argentina (28°S-33°S corresponds to retroarc deformations associated with the ongoing flat subduction of the Nazca plate beneath the South American lithosphere. This region is characterized by high levels of seismic activity and crustal active faulting. To improve earthquake source identification and characterization in the San Juan region, data from seismology, structural geology and quantitative geomorphology were integrated and combined to provide a seismotectonic model. In this seismotectonic model, the Andean back-arc of western Argentina can be regarded as an obliquely converging foreland where Plio-Quaternary deformations are partitioned between strike-slip and thrust motions that are localized on the E-verging, thin-skinned Argentine Precordillera, and the W-verging thick-skinned Sierras Pampeanas, respectively. In this seismotectonic model, the Sierra Pie de Palo appears to be a key structure playing a major role in the partitioning of the Plio-Quaternary deformations.

  12. Feeding strategy and cannibalism of the Argentine hake Merluccius hubbsi.

    Science.gov (United States)

    Ocampo Reinaldo, M; González, R; Romero, M A

    2011-12-01

    The diet composition and feeding strategy of the Argentine hake Merluccius hubbsi in the San Matías Gulf were analysed in order to use this information for the sustainable management of the fishery. Merluccius hubbsi behaved as an opportunistic predator. Small M. hubbsi consumed planktonic crustaceans, whereas medium and large fish ate numerous prey taxa with low frequency of occurrence and variable specific abundance. Intra- and intercohort cannibalism were detected in all size groups and were particularly significant in large M. hubbsi. Medium-sized M. hubbsi consumed small conspecifics and large-sized M. hubbsi consumed both small and medium M. hubbsi. These results indicate that the removal of large M. hubbsi by fishing may increase the risk of overfishing by two combined effects: a direct effect of recruitment-overfishing and an indirect effect of growth-overfishing through an enhanced cannibalism of medium M. hubbsi on small M. hubbsi. Intra- and intercohort cannibalism and other trophic relationships in the M. hubbsi should therefore be considered explicitly in stock assessment models.

  13. [Distribution of Lutzomyia longipalpis in the Argentine Mesopotamia, 2010].

    Science.gov (United States)

    Salomon, Oscar D; Fernandez, Maria S; Santini, María S; Saavedra, Silvina; Montiel, Natalia; Ramos, Marina A; Rosa, Juan R; Szelag, Enrique A; Martinez, Mariela F

    2011-01-01

    The first case of visceral leishmaniasis (VL) in Argentina was reported in 2006 in Posadas, Misiones. During the summer 2008-2009 Lutzomyia longipalpis, the VL vector, and canine VL cases were already spread along the province of Corrientes. In order to know the distribution of VL risk, systematic captures of the vector were performed between February and March 2010, in 18 areas of the provinces of Entre Ríos and Corrientes, and the city of Puerto Iguazú, Misiones, with a total of 313 traps/night. We confirmed the presence of Lu. longipalpis, for the first time in Chajarí (Entre Ríos), Alvear, La Cruz, Curuzú Cuatiá and Bella Vista (Corrientes), and Puerto Iguazú (Misiones). In Santo Tome and Monte Caseros (Corrientes), where the vector had been previously reported, traps with more samples were obtained with 830 and 126 Lu. Longipalpis trap/site/night respectively. These results show that the vector of urban VL continues spreading in the Argentine territory. Simultaneously, the spread of the parasite and the resulting human VL cases are associated with the dispersion of reservoirs, infected dogs, with or without clinical symptoms or signs, due to human transit.

  14. Fragile-X mental retardation: molecular diagnosis in Argentine patients.

    Science.gov (United States)

    Florencia, Giliberto; Irene, Szijan; Veronica, Ferreiro

    2006-11-30

    Fragile-X-syndrome (FXS) is the most common type of inherited cognitive impairment. The underlying molecular alteration consists of a CGG-repeat amplification within the FMR-1 gene. The phenotype is only apparent once a threshold in the number of repeats has been exceeded (full mutation). The aim of this study was to characterize the FMR-1 CGG-repeat status in Argentine patients exhibiting mental retardation. A total of 330 blood samples from patients were analyzed by PCR and Southern blot analysis. Initially, DNA from 78 affected individuals were studied by PCR. Since this method is unable to detect high molecular weight alleles, however, we undertook a second approach using the Southern blotting technique to analyze the CGG repeat number and methylation status. Southern blot analysis showed an altered pattern in 14 out of 240 (6%) unrelated patients, with half of them presenting a mosaic pattern. Eight out of 17 families (47%) showed a (suggest deleting highlight). The characteristic FXS pattern was identified in 8/17 families (47%), and in 4 of these families 25% of the individuals presented with a mosaic model. The expansion from pre-mutation to full mutation was shown to occur both at the pre and post zygotic levels. The detection of FXS mutations has allowed us to offer more informed genetic counseling, prenatal diagnosis and reliable patient follow-up.

  15. Radioprotection of patients and workers in interventional and operating block radiology; La radioprotection des patients et des travailleurs en radiologie interventionnelle et au bloc operatoire

    Energy Technology Data Exchange (ETDEWEB)

    Menechal, P. [Autorite de Surete Nucleaire, Div. de Bordeaux, 33 (France); Valero, M.; Megnigbeto, C.; Marchal, C.; Godet, J.L. [Autorite de surete nucleaire, Dir. des rayonnements ionisants et de la sante, 75 - Paris (France)

    2011-03-15

    Over the last ten years or so, extensive development in radiological and implantable equipment has generated significant growth in radio-guided procedures. The real benefit of these practices to patients explains their development. These procedures can be undertaken using not only dedicated, specific fixed installations and computed tomography scanners, but also mobile installations in facilities not designed for radiography, such as operating blocks. The complexity of these procedures and the times spent implementing the required radiation can lead to major detrimental effects on personnel and patients, if they are not fully controlled. Many specialist medical disciplines now perform invasive procedures guided by images. Optimisation of patient doses mainly depends on the training level of medical teams, the intrinsic performance characteristics of the equipment used, adjustment of the technical parameters and the presence or absence of qualified personnel. Optimisation of professional personnel exposure is complex and depends on the performance conditions of procedures, which can expose workers extensively and non-uniformly. Designation of personnel competent in radioprotection, assessment of risks and definition of controlled areas, analysis of workstations and dosimetric monitoring of operators (especially of body extremities) are difficult to implement. Use of collective and personal protective equipment must be improved. The general manager of the French nuclear safety authority (ASN) has referred the matter to the permanent group of radioprotection experts (GPMED) to ensure that recommendations are drawn up in the short term. (authors)

  16. Radioprotection of the environment: Towards the coming of age of radioecology

    Energy Technology Data Exchange (ETDEWEB)

    Brechignac, F.; Howard, B.; Copplestone, D.

    2004-07-01

    Stimulated by the apparition of large-scale environmental problems, the protection of the environment is becoming increasingly prominent within current concerns of human societies. Industrial and economical activities are experiencing detrimental impacts, which sometimes only become apparent after some delay, making it difficult or illusory to set corrective measures. Hence, a better capacity for anticipation needs to be targeted with a concomitant emphasis on regulation efforts to promote 'sustainable development', where there is a balance achieved between technological innovation and the potential for mastering the associated environmental risk. It is within this general context that radioprotection is called on today not only to fulfil the goal of protecting man, but also to that of protecting biota within a wide variety of complex environments. This has led the ICRP to reconsider its prior position which stated that protecting humans would implicitly also protect the environment to an adequate extent. This view particularly needed reconsideration due to the lack of an explicit scientific demonstration of its validity and because some exceptions have been identified. Since 2000, the ICRP has therefore worked at constructing a general framework for the radiological protection of non-human biota which is currently based on 4 main elements: 1) an approach channelled through the definition of 'reference organisms' to circumvent the difficulty of tackling the overall biodiversity of life forms, and the variety of their life spans, habitats, and metabolisms, 2) units and reference dosimetry models scaled to these reference organisms to be able to estimate radiation doses received by various biota, 3) a set of endpoints that would both ensure fulfilling the protection goals, and be accessible to quantification, and 4) a scale of risk based on the best interpretation of the information available on dose-effects relationships at the level of

  17. [The role of the vasoconstrictor effect in realizing the radioprotective properties of indralin in experiments on dogs].

    Science.gov (United States)

    Vasin, M V; Antipov, V V; Chernov, G A; Abramov, M M; Gavriliuk, D N; L'vova, T S; Suvorov, N N

    1997-01-01

    In the experiments on dogs, the role of a pharmacological circulatory hypoxia in the mechanism of radioprotective effect of indraline and mexamine was studied. Angiography revealed 20-40% vasoconstriction of major arteries of legs of animals, of pelvis and abdomen caused by mexamine (10 mg/kg) and the absence of a significant effect of indraline. Disruption of a regional blood circulation in the marrow and spleen (40-50% and 70-80%, respectively) was caused by indraline to the same extent as by mexamine. For indraline, a decrease in pO2 in the marrow was about 50%. With these hemodynamic disturbances, indraline showed 80 to 100% radioprotective effect, while mexamine was inefficient. Acute hypoxic hypoxia (5-7% O2) increased a post-radiation survival rate for dogs by 40%. The radioprotective effect of indraline was blocked by tropaphen and reduced in cases of breathing with pure oxygen. Splenectomy has no effect on radioprotective properties of indraline. Thus, a hypothesis of the mechanism of a radioprotective effect of alpha-adrenomimetics was proposed.

  18. Argentine experience in the field of illegal immigration.

    Science.gov (United States)

    Villar, J M

    1984-01-01

    This article provides a brief history of Argentine policy toward migratory flows from neighboring countries and Europe, and concludes with statistics on the number of foreigners in Argentina in the 1970-80 period. Measures passed during the 1940s and 1950s were aimed at providing amnesty for foreigners who were residing in Argentina without immigrant status. However, the lack of an adequate administrative structure to regulate foreigners at the borders was a drawback for migration authorities and limited the possiblility of applying admission criteria effectively. By 1970, there were 583,000 foreigners from neighboring countries living in Argentina, which represented a 25% increase from 1960. 42% of these migrants were in the metropolitan region of the country, indicative of a shift away from employment in agriculture. Decree No. 87, passed in 1974, represented an extension of a migration policy aimed at granting ample facilities for permanent residence to aliens from contiguous countries and was designed to prevent abuse of clandestine workers by employers. As a result of this measure, 150,000 foreigners were able to settle legally in the country. A 1981 law, yet to be implemented, establishes a new legal framework aimed at fostering immigration and regulating the admission of foreigners. To attain the objective of settling workers in areas of the country considered of prime importance to economic development, the law provides for infrastructural investments and promotional measures in areas such as tax exemption and the granting of credit. The 1980 National Population Census indicated there were 677,000 foreigners from neighboring countries in Argentina. In that year, foreigners comprised 2.4% of the country's population and 3.1% of the inhabitants of the metropolitan region. These figures are indicative of a decline in the growth of immigration, most likely due to the decline in the purchasing power of workers' salaries in the late 1970s.

  19. DNA barcoding identifies Argentine fishes from marine and brackish waters.

    Directory of Open Access Journals (Sweden)

    Ezequiel Mabragaña

    Full Text Available BACKGROUND: DNA barcoding has been advanced as a promising tool to aid species identification and discovery through the use of short, standardized gene targets. Despite extensive taxonomic studies, for a variety of reasons the identification of fishes can be problematic, even for experts. DNA barcoding is proving to be a useful tool in this context. However, its broad application is impeded by the need to construct a comprehensive reference sequence library for all fish species. Here, we make a regional contribution to this grand challenge by calibrating the species discrimination efficiency of barcoding among 125 Argentine fish species, representing nearly one third of the known fauna, and examine the utility of these data to address several key taxonomic uncertainties pertaining to species in this region. METHODOLOGY/PRINCIPAL FINDINGS: Specimens were collected and morphologically identified during crusies conducted between 2005 and 2008. The standard BARCODE fragment of COI was amplified and bi-directionally sequenced from 577 specimens (mean of 5 specimens/species, and all specimens and sequence data were archived and interrogated using analytical tools available on the Barcode of Life Data System (BOLD; www.barcodinglife.org. Nearly all species exhibited discrete clusters of closely related haplogroups which permitted the discrimination of 95% of the species (i.e. 119/125 examined while cases of shared haplotypes were detected among just three species-pairs. Notably, barcoding aided the identification of a new species of skate, Dipturus argentinensis, permitted the recognition of Genypterus brasiliensis as a valid species and questions the generic assignment of Paralichthys isosceles. CONCLUSIONS/SIGNIFICANCE: This study constitutes a significant contribution to the global barcode reference sequence library for fishes and demonstrates the utility of barcoding for regional species identification. As an independent assessment of alpha

  20. Cryptozoology Society

    Science.gov (United States)

    Richman, Barbara T.

    Reports of Loch Ness monsters, Bigfoot, and the Yeti spring u p from time to time, sparking scientific controversy about the veracity of these observations. Now an organization has been established to help cull, analyze, and disseminate information on the alleged creatures. The International Society of Cryptozoology, formed at a January meeting at the U.S. National Museum of Natural History of the Smithsonian Institution, will serve as the focal point for the investigation, analysis, publication, and discussion of animals of unexpected form or size or of unexpected occurrences in time or space.

  1. Genetic variability and population structure in loci related to milk production traits in native Argentine Creole and commercial Argentine Holstein cattle

    Directory of Open Access Journals (Sweden)

    Golijow C.D.

    1999-01-01

    Full Text Available Many cattle breeds have been subjected to high selection pressure for production traits. Consequently, population genetic structure and allelic distribution could differ in breeds under high selection pressure compared to unselected breeds. Analysis of k-casein, aS1-casein and prolactin gene frequencies was made for Argentine Creole (AC and Argentine Holstein (AH cattle herds. The calculated FST values measured the degree of genetic differentiation of subpopulations, depending on the variances of gene frequencies.The AC breed had considerably more variation among herds at the aS1-casein and k-casein loci. Conservation strategies should consider the entire AC population in order to maintain the genetic variability found in this native breed.

  2. Argentine Hydrellia Robineau-Desvoidy (Diptera, Ephydridae): new species and key to identification.

    Science.gov (United States)

    Rodrigues Júnior, Francisco De Assis; Mathis, Wayne Nielsen; Hauser, Martin

    2015-05-13

    Hydrellia egeriae sp. nov., a new species of Hydrellia from Campana (34 14' 04 S, 58 52' 32 W) and Hurlingham (3435'14 S, 5838'27 W), Buenos Aires province, Argentina is described. A key to the Argentine Hydrellia species is presented.

  3. English as an Instrumental Language: Language Displacement in the Anglo-Argentine Community.

    Science.gov (United States)

    Cortes-Conde, Florencia

    1994-01-01

    Surveyed 99 Anglo-Argentine students aged 10 through 18 at five Spanish-English bilingual schools in Buenos Aires about their language attitudes and usage. It found that, despite the prestige of the English language, Spanish had become the dominant language for most. Age and place of residency in Buenos Aires also had a significant effect on…

  4. Radioprotection and Cell Cycle Arrest of Intestinal Epithelial Cells by Darinaparsin, a Tumor Radiosensitizer

    Energy Technology Data Exchange (ETDEWEB)

    Tian, Junqiang; Doi, Hiroshi [Department of Radiation Oncology, School of Medicine, Stanford University, Stanford, California (United States); Saar, Matthias; Santos, Jennifer [Department of Urology, School of Medicine, Stanford University, Stanford, California (United States); Li, Xuejun; Peehl, Donna M. [Department of Radiation Oncology, School of Medicine, Stanford University, Stanford, California (United States); Knox, Susan J., E-mail: sknox@stanford.edu [Department of Radiation Oncology, School of Medicine, Stanford University, Stanford, California (United States)

    2013-12-01

    Purpose: It was recently reported that the organic arsenic compound darinaparsin (DPS) is a cytotoxin and radiosensitizer of tumor cells in vitro and in subcutaneous xenograft tumors. Surprisingly, it was also found that DPS protects normal intestinal crypt epithelial cells (CECs) from clonogenic death after ionizing radiation (IR). Here we tested the DPS radiosensitizing effect in a clinically relevant model of prostate cancer and explored the radioprotective effect and mechanism of DPS on CECs. Methods and Materials: The radiation modification effect of DPS was tested in a mouse model of orthotopic xenograft prostate cancer and of IR-induced acute gastrointestinal syndrome. The effect of DPS on CEC DNA damage and DNA damage responses was determined by immunohistochemistry. Results: In the mouse model of IR-induced gastrointestinal syndrome, DPS treatment before IR accelerated recovery from body weight loss and increased animal survival. DPS decreased post-IR DNA damage and cell death, suggesting that the radioprotective effect was mediated by enhanced DNA damage repair. Shortly after DPS injection, significant cell cycle arrest was observed in CECs at both G1/S and G2/M checkpoints, which was accompanied by the activation of cell cycle inhibitors p21 and growth arrest and DNA-damage-inducible protein 45 alpha (GADD45A). Further investigation revealed that DPS activated ataxia telangiectasia mutated (ATM), an important inducer of DNA damage repair and cell cycle arrest. Conclusions: DPS selectively radioprotected normal intestinal CECs and sensitized prostate cancer cells in a clinically relevant model. This effect may be, at least in part, mediated by DNA damage response activation and has the potential to significantly increase the therapeutic index of radiation therapy.

  5. Radiation effects and radioprotection by Thai medicinal plants in mouse macrophage cell line

    Institute of Scientific and Technical Information of China (English)

    Cheeraratana Cheeramakara; Kriyaporn Songmueng; Wanyarat Nakosiri; Montri Chairojana; Arag Vitittheeranon; Nopchai Suthisai; Nongnuch Jangsawang; Channarong Sanghiran; Apichart Nontprasert

    2009-01-01

    Objective:To investigate the effects of radiation on growth-arrested (GA)and micronucleus-production (MP) rates,and the radioprotective properties of Thai medicinal plants in mouse macrophage cell line RAW264.7 in vitro.Methods:Mouse macrophage cell line (RAW264.7)was cultured in vitro.Various radiation expo-sures,growth-arrested rate assay,micronucleus production assay,and radioprotection by Thai medicinal plants were performed.Results:The results showed that GA and MP rates for γ-rays and UV were dose-dependent. The 50%-affected dose of γand UV radiation for the GA rate was 10 Gy and 159 microwatt/cm2 for 0.5 sec-onds,respectively.After X-ray exposure,there was no apparent effect on RAW264.7 cells,even with a forty-fold human diagnostic dose.Two exposures to γradiation at 20 Gy resulted in a significantly higher MP rate than 20 Gy single exposure or control (P <0.05).The Thai medicinal plants (Kamin-chun capsules,Curcu-ma longa Linn;Hed lingeu,Ganoderma lucidum;Ya Pakking capsule,Murdannia loriformis)could not pre-vent cell damage,but epigallocatechin gallate and L-cysteine could provide protection from 2 Gy γ-ray expo-sure.Conclusion:γradiation caused chromosomal damage during cell division and UV caused cell death, while X-ray radiation was safe.The radioprotective effects of Thai medicinal plants,Kamin-chun,Hed lingeu, and Ya Pakking,could not prevent cell damage in this study.

  6. Radioprotective and cytoprotective activity of Tinospora cordifolia stem enriched extract containing cordifolioside-A

    Directory of Open Access Journals (Sweden)

    Arti Patel

    2013-01-01

    Full Text Available Objectives: The present study was undertaken to evaluate the radioprotective and cytoprotective potential of cordifolioside-A, a primary active constituent of n-butanol fraction of Tinospora Cordifolia (NBTC against 4 Gy-γ radiation in mice and cyclophosphamide induced genotoxicity. Materials and Methods: Presence of cordifolioside-A in NBTC stem ethanolic extract was confirmed by high performance thin layer chromatography (HPTLC analysis. Radioprotective activity was evaluated at 80 and 120 mg/kg, intraperitoneal (i.p. dose of NBTC administered 15 days prior to whole body radiation exposure by observing survival rate, change in body weight, hematology, spleen colony forming unit (CFU, and micronucleus (MN expression. Cytoprotective activity of NBTC was evaluated at 5, 10, and 15 mg/ml concentrations on Allium cepa root meristem growth against cyclophosphamide. Results: HPTLC analysis of standard cordifolioside A, and NBTC confirmed the presence of cordifolioside-A in NBTC with the retention factor value of 0.86. Administration of NBTC (120 mg/kg, i.p. produced significant protection against radiation in terms of increased survival rate, body weight retention, hematological parameters, spleen CFU assay (P < 0.01, and decreased MN expression (P < 0.01. Cytoprotectivity was observed maximally at 10 mg/ml NBTC concentration with significant increase in root growth (P < 0.01, non-toxic mitotic index (MI (65.9% and lesser chromosomal aberrations (15.4%. NBTC at 10 mg/ml concentration showed very few C-anaphase compared to aberrations like fragmentation, C-anaphase, multipolarity and sticky chromosome in cyclophosphamide alone. Conclusion: The results suggest that enriched NBTC containing cordifolioside-A has a potential in vivo radioprotective effect as well as in vitro cytoprotective activity.

  7. The GnRH analogue triptorelin confers ovarian radio-protection to adult female rats

    Energy Technology Data Exchange (ETDEWEB)

    Camats, N. [Institut de Biotecnologia i de Biomedicina (I.B.B.), Universitat Autonoma de Barcelona, 08193 Barcelona (Spain); Departament de Biologia Cel.lular, Fisiologia i Immunologia, Universitat Autonoma de Barcelona, 08193 Barcelona (Spain); Garcia, F. [Institut de Biotecnologia i de Biomedicina (I.B.B.), Universitat Autonoma de Barcelona, 08193 Barcelona (Spain); Parrilla, J.J. [Servicio de Ginecologia y Obstetricia, Hospital Universitario Virgen de la Arrixaca, 30120 El Palmar, Murcia (Spain); Calaf, J. [Servei de Ginecologia i Obstetricia, Hospital Universitari de la Santa Creu i Sant Pau, 08025 Barcelona (Spain); Martin-Mateo, M. [Departament de Pediatria, d' Obstetricia i Ginecologia i de Medicina Preventiva, Universitat Autonoma de Barcelona, 08193 Barcelona (Spain); Caldes, M. Garcia, E-mail: Montserrat.Garcia.Caldes@uab.es [Institut de Biotecnologia i de Biomedicina (I.B.B.), Universitat Autonoma de Barcelona, 08193 Barcelona (Spain); Departament de Biologia Cel.lular, Fisiologia i Immunologia, Universitat Autonoma de Barcelona, 08193 Barcelona (Spain)

    2009-10-02

    There is a controversy regarding the effects of the analogues of the gonadotrophin-releasing hormone (GnRH) in radiotherapy. This has led us to study the possible radio-protection of the ovarian function of a GnRH agonist analogue (GnRHa), triptorelin, in adult, female rats (Rattus norvegicus sp.). The effects of the X-irradiation on the oocytes of ovarian primordial follicles, with and without GnRHa treatment, were compared, directly in the female rats (F{sub 0}) with reproductive parameters, and in the somatic cells of the resulting foetuses (F{sub 1}) with cytogenetical parameters. In order to do this, the ovaries and uteri from 82 females were extracted for the reproductive analysis and 236 foetuses were obtained for cytogenetical analysis. The cytogenetical study was based on the data from 22,151 metaphases analysed. The cytogenetical parameters analysed to assess the existence of chromosomal instability were the number of aberrant metaphases (2234) and the number (2854) and type of structural chromosomal aberrations, including gaps and breaks. Concerning the reproductive analysis of the ovaries and the uteri, the parameters analysed were the number of corpora lutea, implantations, implantation losses and foetuses. Triptorelin confers radio-protection of the ovaries in front of chromosomal instability, which is different, with respect to the single and fractioned dose. The cytogenetical analysis shows a general decrease in most of the parameters of the triptorelin-treated groups, with respect to their controls, and some of these differences were considered to be statistically significant. The reproductive analysis indicates that there is also radio-protection by the agonist, although minor to the cytogenetical one. Only some of the analysed parameters show a statistically significant decrease in the triptorelin-treated groups.

  8. Powerful motors: Kinship, citizenship and the transformation of the Argentine oil industry

    Science.gov (United States)

    Shever, Elana

    The privatization of the Argentine oil industry has been described as an unprecedented transfer of property, capital and control from the state to the corporate sphere, but this study demonstrates that the privatization process is better understood as a transformation of the historical configurations of oil-fueled development, political communities and human subjectivities. This dissertation probes the development of the state-led oil industry, and the shift to a corporate-led one, through an ethnography of Argentines differently positioned in relation to the global oil industry. The ethnography explores the lives of middle class oil workers and their families in Northwest Patagonia, impoverished residents of the shanty neighborhoods near the refineries in metropolitan Buenos Aires, and affluent employees of the translocal corporations operating in the Argentine oil fields. After the Introduction delineates this study's four principal interventions into anthropological scholarship, each subsequent chapter engages a particular problem that cuts across the Argentine oil fields and the anthropological theoretical fields. Chapter Two scrutinizes the historical construction of the Argentine subterritory as a "natural" space of value. Chapters Three and Four investigate the articulation of capitalist production and filial reproduction. These chapters argue that sentiment is a crucial generative force that has shaped the oil industry, company towns and worker families from the founding of the state-owned oil company in beginning of the twentieth century to its conversion into a corporate-owned one at the century's close. Chapters Five and Six examine the emergence of consumer citizenship and corporate citizenship out of Argentine neoliberalismo and its transformation of the oil industry. They argue that consumer and corporate citizenship are both reformulations of the older traditions of liberalism and Peronism. All the chapters of this dissertation illustrate that the

  9. Response and Monte Carlo evaluation of a reference ionization chamber for radioprotection level at calibration laboratories

    Science.gov (United States)

    Neves, Lucio P.; Vivolo, Vitor; Perini, Ana P.; Caldas, Linda V. E.

    2015-07-01

    A special parallel plate ionization chamber, inserted in a slab phantom for the personal dose equivalent Hp(10) determination, was developed and characterized in this work. This ionization chamber has collecting electrodes and window made of graphite, and the walls and phantom made of PMMA. The tests comprise experimental evaluation following international standards and Monte Carlo simulations, employing the PENELOPE code to evaluate the design of this new dosimeter. The experimental tests were conducted employing the radioprotection level quality N-60 established at the IPEN, and all results were within the recommended standards.

  10. Cation-anionicpalladium Complexes- New Types of Antitumor, Immune Response-modulating and Radioprotective Agents

    Institute of Scientific and Technical Information of China (English)

    EFIMENKO I. A.; SHISHILOV O. N.; IVANOVA N. A.; EROFEEVA O. S.

    2012-01-01

    Here we report results of our investigations of new class of bioactive palladium compounds (AHn)m[PdC14],which were discovered as a result of systematic study of correlations between composition,structure and bioactivity of different types of platinum metals coordination compounds.For the first time we demonstrated in vivoa possibility of development of palladium compounds,which exceed cisplatin in antitumor activity and do not show immunosuppressive effects,and palladium compounds with immunostimulating and radioprotective activities.Combinations of cytostatic agents or radiation with palladium complexes lead to significant synergism of their activities and high therapeutic efficiency exceeded an efficiency of their separated use.

  11. Enzyme histochemical, biochemical and metabolic effects of Solcoseryl in connection with its radioprotective capability.

    Science.gov (United States)

    Bauer, D; Locker, A; Grigoriadis, P; Goslar, H G; Jaeger, K H

    1979-01-01

    The lethal irradiation with gamma-rays (LD 100/30) of adult mice at ambient temperature of 32.5 degrees C heavily alterates the pattern of LDH in liver. In close correspondence with the radioprotective effect of Solcoseryl on the survival rate of irradiated mice -- which amounts to 100% as compared with 40% survival of solely heat adapted animals -- Solcoseryl normalizes the LDH distribution both histochemically and biochemically. Since Solcoseryl alone generally enhances enzyme activity the normalization observed is obviously attributable to an intrinsically regulatory property of this natural compound.

  12. Radioprotection of Swiss albino mice by Prunus avium with special reference to hematopoietic system.

    Science.gov (United States)

    Sisodia, Rashmi; Singh, Smita; Mundotiya, Chaturbhuj; Meghnani, Ekta; Srivastava, Preeti

    2011-01-01

    Prunus avium (family Rosaceae) has been used ethnomedicinally for the treatment of many diseases,but its radioprotective efficacy has hardly been explored. Presence of high anthocyanin content and phenolic compound with good antioxidative capacity has been reported by researchers. Its radioprotective effect against 5, 7, 10, and 12 Gygamma radiation was evaluated by 30 day survival assay. Regression analysis yielded LD(50/30) 5.81 and 9.43Gy for irradiated only and (P. avium fruit extract) PAE + radiation groups, respectively. The dose reduction factor was computed as 1.62. For biochemical and hematological studies, Swiss albino mice were divided into four groups: (i) control (vehicle treated), (ii) PAE treated (450 mg kg/day for 15 consequetive days), (iii) irradiated (5 Gy), and (4) PAE + irradiated. The irradiation of animals resulted in a significant elevation of lipid peroxidation and depletion in glutathione and protein levels in blood serum and spleen, which could be significantly checked by administration of PAE. Radiation-induced deficit in blood sugar, cholesterol, and hematological constituents could also be modulated by supplementation of PAE before and after irradiation. The possible prophylactic and therapeutic action noted by P. avium against radiation induced metabolic disorders may be due to synergistic action of various antioxidants, minerals, vitamins, etc., present in the fruit. Further mechanistic studies aimed at identifying the role of major ingredients in the extract are needed.

  13. Radioprotection of {beta}-carotene evaluated on mouse somatic and germ cells

    Energy Technology Data Exchange (ETDEWEB)

    Salvadori, Daisy M.F.; Ribeiro, Lucia R. [Departamento de Patologia, Faculdade de Medicina, Universidade Estadual Paulista-UNESP, Botucatu-SP (Brazil); Xiao, Yun; Boei, Jan J.; Natarajan, A.T. [MGC Department of Radiation Genetics and Chemical Mutagenesis, Sylvius Laboratory, State University of Leiden, Leiden (Netherlands)

    1996-09-23

    In the present paper, the protective effect of {beta}-carotene was evaluated after whole body exposure of mice to 2 Gy of X-rays. Splenocytes, reticulocytes, bone marrow cells and spermatids were evaluated for the frequency of micronuclei (MN) induced by X-rays. Mice were treated (gavage) with {beta}-carotene (10, 25 and 50 mg/kg b.w.) for 5 consecutive days and, 4 h after the last treatment, the animals were irradiated. The results obtained showed different frequencies of X-ray-induced-MN between different cell populations analysed and also different response of these cells to the {beta}-carotene treatment. The radioprotective effect of {beta}-carotene was observed in splenocytes, reticulocytes, and spermatids but not in bone marrow cells. No dose-response relationship for {beta}-carotene was detected. The time of sampling, the sensitivity of the cells as well as the antioxidant activity of {beta}-carotene are discussed as important factors for the radioprotective action of this provitamin.

  14. Evaluation of evidenced-based radioprotective efficacy of Gymnema sylvestre leaves in mice brain.

    Science.gov (United States)

    Sharma, K; Singh, Umang; Vats, Sharad; Priyadarsini, K; Bhatia, A; Kamal, Raka

    2009-01-01

    A Gymnema sylvestre leaves extract (GSE) rich in gymnemic acids was examined for its antioxidant activities through various in vitro assays, along with its radioprotective efficacy in mice brain. The IC(50) values of GSE for 2,2-diphenyl-1-picryl-hydrazyl scavenging assays, superoxide radical scavenging assays, inhibition of in vitro lipid peroxidation assays, and protein carbonyl formation assay were 238, 140, 99.46, and 28.03 microg/mL, respectively. Furthermore, the total phenolic content in GSE was equivalent to 18.06 microg/mL of Gallic acid. The rate of *OH radical scavenging activity of GSE is 0.46 times slower than SCN- derived from nanosecond pulse radiolysis studies. Results of in vivo studies showed that radiation (8 Gy)-induced augmentation in the levels of lipid peroxidation and depletion in glutathione and protein levels in mice brain were significantly ameliorated by GSE pretreatment. Results suggest that the radioprotective efficacy of GSE may be due to its antioxidant properties.

  15. Radioprotective effect of Curcuma longa extract on γ-irradiation-induced oxidative stress in rats.

    Science.gov (United States)

    Nada, Ahmed S; Hawas, Asrar M; Amin, Nour El-Din; Elnashar, Magdy M; Abd Elmageed, Zakaria Y

    2012-04-01

    This study was conducted to evaluate the modulatory effect of aqueous extract of Curcuma longa (L.) against γ-irradiation (GR), which induces biochemical disorders in male rats. The sublethal dose of GR was determined in primary hepatocytes. Also, the effect of C. longa extract was examined for its activity against GR. In rats, C. longa extract was administered daily (200 mg/kg body mass) for 21 days before, and 7 days after GR exposure (6.5 Gy). The lipid profile and antioxidant status, as well as levels of transaminases, interleukin-6 (IL-6), and tumour necrosis factor α (TNFα) were assessed. The results showed that in hepatocytes, the aqueous extract exhibited radioprotective activity against exposure to GR. Exposure of untreated rats to GR resulted in transaminase disorders, lipid abnormalities, elevation of lipid peroxidation, trace element alterations, release of IL-6 and TNF, and decrease in glutathione and protein level of superoxide dismutase-1 (SOD-1) and peroxiredoxin-1 (PRDX-1). However, treatment of rats with this extract before and after GR exposure improved antioxidant status and minimized the radiation-induced increase in inflammatory cytokines. Changes occurred in the tissue levels of trace elements, and the protein levels of SOD-1 and PRDX-1 were also modulated by C. longa extract. Overall, C. longa exerted a beneficial radioprotective effect against radiation-induced oxidative stress in male rats by alleviating pathological disorders and modulating antioxidant enzymes.

  16. Fifth meeting of persons competent in radiation protection; Cinquiemes rencontres des personnes competentes en radioprotection

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2007-07-01

    During this meeting will successively be approached: the statutory frame, the practical guide for the realization of the dosimetry studies of work stations presenting a risk of exposure to ionizing radiations, a study of post in conventional and interventional radiology, study of post in interventional cardiology, the roles and the missions of the P.C.R. (person competent in radiation protection) in a subcontractor company in I.N.B. (base nuclear installation), the application of the zoning order for the activities of industrial radiography, the evolution of the statutory measures in protection of the workers against the dangers of ionizing radiations, all which concerns the P.C.R. (training, missions, certification, educational role), the controls of radioprotection, the external controls of radioprotection, the surveillance of working zones, surveillance of effluents,management of the radioactive waste and effluents, classification of the personnel and the surveillance of the exposure, dosimetry by radio photo luminescence, the systeme S.I.S.E.R.I.. (N.C.)

  17. Radioprotective effect of ascorbate in the liver of {gamma}-irradiated mice

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Dong Yun; Park, Young Soon [Sohae College, Kusan (Korea, Republic of)

    2000-06-01

    In the present study, to determine whether the ascorbate protect against radiation damage and the possible relationship among the radioprotective effects and antioxidant actions, the effects of ascorbate(240 mg/kg, i.p) pretreatment of mice on the survival ratio, splenic weight, major antioxidant enzymes(SOD, catalase and glutathione peroxidase) activities, glutathione contents and lipid peroxidation in the liver were examined for 2 weeks after whole-body {gamma}-irradiation(6.5 Gy). The 30-day survival ratio increased from 10% to 47% for mice treated with ascorbate. The ascorbate decreased the extent of loss in splenic weight and stimulated recovery of splenic weight in irradiated mice(p<0.01). On the day of 14 after {gamma}-irradiation, the ascorbate pretreatment produced a slight increase of antioxidant enzymes activities and significantly increased reduced glutathione(GSH) contents(p<0.05) in the liver compared with non-treated group. Pretreatment with the ascorbate significantly decreased GSSG/total GSH ratio(p<0.05) without the change of GSSG in the liver and inhibited the radiation-induced increase in the hepatic malondialdehyde levels(p<0.05). In these results, we found that its radioprotective effect by protecting antioxidant enzyme activities and glutathione contents from radiation induced a decrease, and thereby suppressing lipid peroxidation which is induced by free radicals.

  18. Radioprotective effect of vitamin E in parotid glands: a morphometric analysis in rats

    Energy Technology Data Exchange (ETDEWEB)

    Gomes, Carolina Cintra; Boscolo, Frab Norberto; Almeida, Solange Maria de [Universidade Estadual de Campinas (UNICAMP), Piracicaba, SP (Brazil). Dept. de Diagnostico Oral; Ramos-Perez, Flavia Maria de Moraes; Perez, Danyel Elias da Cruz, E-mail: flavia.ramosperez@ufpe.br [Universidade Federal de Pernambuco (UFPE), Recife, PE (Brazil). Dept. de Clinica e Odontologia Preventiva; Novaes, Pedro Duarte [Universidade Estadual de Campinas (UNICAMP), Piracicaba, SP (Brazil). Escola de Odontologia. Dept. de Morfologia

    2013-11-01

    The aim of this study was to evaluate the radioprotective effect of vitamin E on rat parotid glands by morphometric analysis. Sixty male rats were divided into 5 groups (n=6): control, in which animals received olive oil solution; olive oil/irradiated, in which animals received olive oil and were irradiated with a dose of 15 Gy of gamma radiation; irradiated, in which animals were irradiated with a dose of 15 Gy gamma radiation; vitamin E, which received {alpha}-tocopherol acetate solution; vitamin E/irradiated, which received {alpha}-tocopherol acetate solution before irradiation with a dose of 15 Gy gamma rays. Half of the animals were euthanized at 8 h, and the remaining at 30 days after irradiation. Both parotid glands were surgically removed and morphometric analysis of acinar cells was performed. Data were subjected to two-way ANOVA and Tukey's test ({alpha}=0.05). Morphometric analysis showed a significant reduction in the number of parotid acinar cells at 30 days in olive oil/irradiated and irradiated groups. In groups evaluated over time a significant reduction was shown at 30 days in olive oil/irradiated and irradiated groups, indicating that ionizing radiation caused tissue damage. The vitamin E/irradiated group presented more acinar cells than the irradiated group, but no statistically significant difference was observed (p>0.05). In conclusion, vitamin E seems to have failed as a radioprotective agent on acinar cells in rat parotid glands. (author)

  19. Effect of black raspberry extract in inhibiting NFkappa B dependent radioprotection in human breast cancer cells.

    Science.gov (United States)

    Madhusoodhanan, Rakhesh; Natarajan, Mohan; Singh, Jamunarani Veeraraghavan Nisha; Jamgade, Ambarish; Awasthi, Vibhudutta; Anant, Shrikant; Herman, Terence S; Aravindan, Natarajan

    2010-01-01

    Black raspberry extracts (RSE) have been shown to inhibit cancer cell growth and stimulate apoptosis. Also, studies have demonstrated that RSE inhibits transcriptional regulators including NFkappa B. Accordingly, we investigated the effect of RSE in inhibiting radiation (IR) induced NFkappa B mediated radioprotection in breast adenocarcinoma cells. MCF-7 cells were exposed to IR (2Gy), treated with RSE (0.5, 1.0, 2.0 micro g/ml) or treated with RSE (1.0 micro g/ml) followed by IR exposure, and harvested after 1, 3, 6, 24, 48, and 72 h. NFkappa B DNA-binding activity was measured by EMSA and phosphorylated Ikappa Balpha by immunoblotting. Expression of IAP1, IAP2, XIAP and survivin were measured by QPCR and immunoblotting. Cell survival was measured using MTT assay and cell death using Caspase-3/7 activity. Effect of RSE on IR induced MnSOD, TNFalpha, IL-1alpha and MnSOD activity was also determined. RSE inhibited NFkappa B activity in a dose-dependent manner. Also, RSE inhibited IR-induced sustained activation of NFkappa B, and NFkappa B regulated IAP1, IAP2, XIAP, and survivin. In addition, RSE inhibited IR-induced TNFalpha, IL-1alpha, and MnSOD levels and MnSOD activity. RSE suppressed cell survival and enhanced cell death. These results suggest that RSE may act as a potent radiosensitizer by overcoming the effects of NFkappa B mediated radioprotection in human breast cancer cells.

  20. Vasoactive and radioprotective properties of isothiourea derivatives having NOS-inhibitory activity

    Energy Technology Data Exchange (ETDEWEB)

    Filimonova, Marina V.; Shevchenko, Ludmila I.; Ulyanenko, Stepan E.; Makarchuk, Victorya M.; Kuznetsova, Mary N.; Shevchuk, Aza S.; Lushnikova, Galina A.; Chesnakova, Ekaterina A. [Medical Radiological Research Center Health Ministry of Russia, 4, Korolev street, Obninsk, 249036, Kaluga region (Russian Federation)

    2014-07-01

    We studied vasoactive and radioprotective properties of new original N-acyl, S-alkyl isothiourea derivatives which are potent inhibitors of nitric oxide synthases (preferably eNOS and iNOS). These compounds have a moderate toxicity (LD50 - 400-550 mg/kg), and are stable in aqueous solutions. In hemodynamic studies, these compounds exhibited high vasotropic activity. The use of these compounds in doses of 5-15 mg/kg (0,01-0,03 LD{sub 50}) in the experimental animals in a state of the severe hemorrhagic or endo-toxic shock causes a potent vasopressor effect, accompanied by a significant and continuous rise in blood pressure. The increasing of vascular tone developed over 2-5 min after injection and persisted for at least 60-90 minutes, excelling at least 3-5 times the duration of α1-adreno-mimetic vasopressor action. The rapid increase in vascular tone under the influence of these compounds in normo-tonic animals caused protective baroreflex to prevent high blood pressure. At doses of 10-15 mg/kg the reflex reaction was mild, but at higher doses (30-40 mg/kg) the reaction was fierce and prolonged, and was accompanied by severe bradycardia, decreasing of the cardiac output and a significant weakening of the peripheral blood flow. In all cases, the hemodynamic response was reflexive and easily eliminated by atropine. The ability of these compounds to induce circulatory hypoxia was the basis for the study of their radioprotective properties. The study of radioprotective effect on the survival of animals exposed to lethal doses of γ-radiation (10 Gy) and on the survival of hematopoietic clonogenic cells showed that these compounds in doses of 80-150 mg/kg (0,2-0,3 LD50) have considerable radioprotective action, which is comparable with the protective effect of the maximum tolerated dose of cystamine. The factor of change in dose for γ-radiation, estimated by the LD{sub 50}, was 1,42-1,58. We also investigated the ability of the test compounds, due to their hypoxic

  1. Experimental studies on radioprotection of the bladder wall by means of medicaments (experiments on 17 female domestic cats)

    Energy Technology Data Exchange (ETDEWEB)

    Pust, R.; Weidner, W.; Rothauge, C.F.; Ernst, H.

    1982-11-01

    The radioprotective effect of Cortisone, Bepanthen and Actihaemyl during a telecobalt irradiation of the bladder with a focal dose of 60 Gy was investigated in 17 female domestic cats. Different clinical and radiological and especially focally shaped modifications were caused by the administration of these medicaments. The modifications are discussed in detail.

  2. Comparative leaf anatomy in argentine Galactia species Anatomía comparada de hoja en especies argentinas de Galactia

    OpenAIRE

    G. M. Tourn; M. T. Cosa; G. G. Roitman; Silva,M.P.

    2009-01-01

    A comparative study of anatomical characters of the leaves of argentine species of Genera Galactia was carried out in order to evaluate their potential value in Taxonomy. In Argentine 14 species and some varieties from Sections Odonia and Collaearia can be found. Section Odonia: G. benthamiana Mich., G. dubia DC., G. fiebrigiana Burkart var. correntina Burkart, G. glaucophylla Harms, G. gracillima Benth., G. latisiliqua Desv., G. longifolia (Jacq.) Benth., G. marginalis Benth., G. striata (Ja...

  3. Medical Management of Acute Radiation Syndromes : Comparison of Antiradiation Vaccine and Antioxidants radioprotection potency.

    Science.gov (United States)

    Maliev, Slava; Popov, Dmitri; Lisenkov, Nikolai

    Introduction: This experimental study of biological effects of the Antiradiation Vaccine and Antioxidants which were used for prophylaxis and treatment of the Acute Radiation Syndromes caused by high doses of the low-LET radiation. An important role of Reactive Oxyden Species (Singlet oxygen, hydroxyl radicals, superoxide anions and bio-radicals)in development of the Acute Radiation Syndromes could be defined as a "central dogma" of radiobiology. Oxida-tion and damages of lipids, proteins, DNA, and RNA are playing active role in development of postradiation apoptosis. However, the therapeutic role of antioxidants in modification of a postradiation injury caused by high doses of radiation remains controversial.Previous stud-ies had revealed that antioxidants did not increase a survival rate of mammals with severe forms of the Acute Radiation Syndromes caused by High Doses of the low-LET radiation. The Antiradiation Vaccine(ARV) contains toxoid forms of the Radiation Toxins(RT) from the Specific Radiation Determinants Group (SRD). The RT SRD has toxic and antigenic prop-erties at the same time and stimulates a specific antibody elaboration and humoral response form activated acquired immune system. The blocking antiradiation antibodies induce an im-munologically specific effect and have inhibiting effects on radiation induced neuro-toxicity, vascular-toxicity, gastrointestinal toxcity, hematopoietic toxicity, and radiation induced cytol-ysis of selected groups of cells that are sensitive to radiation. Methods and materials: Scheme of experiments: 1. Irradiated animals with development of Cerebrovascular ARS (Cv-ARS), Cardiovascular ARS (Cr-ARS) Gastrointestinal ARS(GI-ARS), Hematopoietic ARS (H-ARS) -control -were treated with placebo administration. 2. Irradiated animals were treated with antioxidants prophylaxisis and treatment of Cv-ARS, Cr-SRS, GI-ARS, Hp-ARS forms of the ARS. 3. irradiated animals were treated with radioprotection by Antiradiation Vaccine

  4. Radioprotective effects of CBLB502 on γ-radiated Rhesus monkey

    Directory of Open Access Journals (Sweden)

    Xing SHEN

    2015-06-01

    Full Text Available Objective A Rhesus monkey model was employed to study the radioprotective effects of a Toll-like receptor 5 agonist, CBLB502, against 7.0Gy whole-body irradiation of 60Co gamma-rays. Methods Thirty animals were assigned to a placebo treatment group, a WR-2721 positive control group, and three CBLB502 treatment groups (n=6 animals/group. Each animal was irradiated with 7.0Gy 60Co γ and given CBLB502 at 2.5, 10 and 40μg/kg, respectively in treatment groups, or WR-2721 at 30mg/kg, or physiological saline 0.3ml/kg for the placebo treatment group. The treatment was given once by intramuscular injection 30 min before irradiation. All irradiated animals received symptomatic treatment based on same guidelines. General observation, peripheral blood tests, hemopoietic progenitor cell colony-counting, and histopathological examination were performed. Results We found that 10 or 40μg/kg CBLB502 treatment resulted in 100% survival, while the survival rate was 33% in placebo treatment group. Hematopoietic recovery in the WR-2721 treatment group was marginally superior to the irradiation control group. Nadirs of peripheral white cell and platelet counts of animals treated with 40μg/kg of CBLB502 were significantly higher than those of the placebo treatment group (P<0.05. CBLB502 at 40μg/kg also gave a shortened duration of low platelet count, earlier recovery time, reduced the amount of blood transfusion and damage to the bone marrow and intestine. Conclusion All Rhesus monkeys irradiated with 7.0Gy 60Co γ-rays would suffer from severe acute radiation sickness of hematopoietic system. CBLB502 at 40μg/kg is radioprotective in this model and a single intramuscular injection of CBLB502 in a dose of 40μg/kg 30min before irradiation gives better radioprotective effects than WR-2721. DOI: 10.11855/j.issn.0577-7402.2015.04.07

  5. Abstract bodies, concrete risks: clinical devices and the health of ova donors in Argentine reproductive medicine

    OpenAIRE

    Lucía Ariza

    2016-01-01

    Using a methodological perspective grounded in science and technology studies, this article analyzes two sociotechnical devices used in Argentine reproductive medicine (biostatistical measures and donation registries) with the aim of controlling both the so-called “genetic risk” arising from the use of donated ova as well as the health risks to female donors. By examining how the deployment of monitoring criteria disregards the specificity of ova donation, the article suggests that it is not ...

  6. Therapeutic Argentine tango dancing for people living with Parkinson’s disease: a feasibility study

    OpenAIRE

    Blandy, Laura M.; Meg E. Morris; Winifred A Beevers

    2015-01-01

    Background: Individuals living with Parkinson’s disease (PD) can experience a range of movement disorders. Therapeutic dance is enjoyable and thought to improve mobility, balance and well being in some people with PD. The primary objective of this study was to evaluate the feasibility and safety of a 4 week Argentine tango dance program for people with PD. Methods: Six community dwelling individuals with mild-moderate PD were recruited from Parkinson’s support groups, movement disorder clini...

  7. The Falklands War: Understanding the Power of Context in Shaping Argentine Strategic Decisions

    Science.gov (United States)

    2007-09-01

    Malvinas—La Defensa de Puerto Argentino, Comandos en Accion and Testimonio de su Gobernador.65 Additional insight into the origins of the conflict can be... planning . For a defending force, in this case the Argentines, the goal 128 Stewart, 60. 129... planned naval movement against the British task force. The attack was to be a two-pronged assault with the Belgrano leading the southern element of

  8. Viral Strain Dependent Differences in Experimental Argentine Hemorrhagic Fever (Junin Virus) Infection of Guinea Pigs

    Science.gov (United States)

    1988-01-01

    Nacional de Estudios Sobre Virosis Hemorragicas, Pergamino, Province de Buenos Aires, S Argentina Key Words. Argentine hemorrhagic fever virus • Junin...Gonzalez, P.H.: Maiztegui. J. I.: plaques. Proc. Soc. exp. Biol. Med. 130:1013 1019 Laguens, R.P.: Estudio morfologico de la medula (1969). osea humana en... casos de fiebre hemorra- Atlanta 1976). gica Argentina. Pensa med. Argentina 56.605 614 14 The Subcommittee on Arbovirus Laborator (1969). Safety of

  9. Draft Genome Sequences of Four Enterococcus faecium Strains Isolated from Argentine Cheese

    Science.gov (United States)

    Martino, Gabriela P.; Quintana, Ingrid M.; Espariz, Martín; Blancato, Victor S.; Gallina Nizo, Gabriel; Esteban, Luis

    2016-01-01

    We report the draft genome sequences of four Enterococcus faecium strains isolated from Argentine regional cheeses. These strains were selected based on their technological properties, i.e., their ability to produce aroma compounds (diacetyl, acetoin, and 2,3-butanediol) from citrate. The goal of our study is to provide further genetic evidence for the rational selection of enterococci strains based on their pheno- and genotype in order to be used in cheese production. PMID:26847907

  10. Efficacy of Argentine propolis formulation for topical treatment of canine otitis externa

    OpenAIRE

    L.A Lozina; M.E Peichoto; S.I Boehringer; P. Koscinczuk; G.E Granero; O.C Acosta

    2010-01-01

    The therapeutic effects of Argentine propolis ear drop formulation on canine otitis externa were evaluated. Forty-eight dogs with symptoms of otitis externa were randomly assigned to double-blinded, controlled clinical trial to evaluate the efficacy of topical formulation with propolis versus a topical placebo in the treatment of otitis externa. The propolis preparation and placebo were administrated into both external ear canals, twice daily for 14 days. Throughout the study, clinical examin...

  11. Inhibition of cyclooxygenase activity by standardized hydroalcoholic extracts of four Asteraceae species from the Argentine Puna

    OpenAIRE

    Alberto,M.R.; Zampini,I.C.; Isla, M. I.

    2009-01-01

    We determined the anti-inflammatory activity of standardized extracts of four medicinal plant species (Baccharis incarum, B. boliviensis, Chuquiraga atacamensis, Parastrephia lucida) that grow in the Argentine Puna (3800 m above sea level) and that are used to reduce oxidative stress and alleviate gout and arthritic pain. The extracts of plant aerial parts were standardized in terms of total phenolic compounds and flavone/flavanone content and free radical scavenging activity. All extracts sh...

  12. The executive and legislative branches and trade unions in the Argentine social security reform

    Directory of Open Access Journals (Sweden)

    Sidney Jard da Silva

    2007-01-01

    Full Text Available This article analyzes the interaction between organized labor and government during reform of the pension system in Argentina. The purpose is to investigate the political and institutional conditions favorable to the inclusion of trade unions in a negotiated pension reform process. The Argentine pattern of union-government interaction was shown to be shaped more by the peculiarities of the decision-making process than by the demands and power of union organizations.

  13. Society of Reproductive Surgeons

    Science.gov (United States)

    ... affiliated society to the American Society for Reproductive Medicine . Below are links to publications authored by ASRM and its affiliated societies. Latest Additions: Diagnostic Testing for Male Factor Infertility Robotic surgery The Intrauterine Device (IUD): A Long-acting ...

  14. Short-term radioprotective effects of WR-2721 on the rat parotid glands. [X radiation

    Energy Technology Data Exchange (ETDEWEB)

    Sodicoff, M.; Conger, A.D.; Trepper, P.; Pratt, N.E.

    1978-08-01

    The radioprotective capacity of the chemoprotector WR-2721 was assessed in the rat parotid gland using gland weight and amylase content as the indicators of effect over the 9-day period following x irradiation with 1.6, 3.2, and 6.4 kR of acute x rays. The decline and recovery of weights and amylase content were measured and compared in animals which had and had not received WR-2721 just prior to irradiation. Analysis of the dose-response curves for the WR-2721 protected vs nonprotected animals yielded dose modification factors of 2.5 for gland weight, 1.7 for amylase concentration, and 1.8 for total gland amylase. Thus, WR-2721 was found to be effective in yet another tissue and to a degree consistent with that of other organs and systems.

  15. Potential use of HMG-CoA reductase inhibitors (statins) as radioprotective agents.

    Science.gov (United States)

    Fritz, Gerhard; Henninger, Christian; Huelsenbeck, Johannes

    2011-01-01

    HMG-CoA reductase inhibitors (statins) are widely used in the therapy of hypercholesterolemia. Apart from their lipid-lowering activity, they have pleiotropic effects that are attributed to the inhibition of regulatory proteins, including Ras-homologous (Rho) GTPases. Here, we discuss the potential usefulness of statins to prevent normal tissue damage provoked by radiotherapy. Statins reduce the mRNA expression of pro-inflammatory and pro-fibrotic cytokines stimulated by ionizing radiation in vitro and alleviate IR-induced inflammation and fibrosis in vivo. The currently available data indicate that statins accelerate the rapid repair of DNA double-strand breaks and, moreover, mitigate the DNA damage response induced by IR. Furthermore, statins increase the mRNA expression of DNA repair factors in vivo. Thus, although the molecular mechanisms involved are still ambiguous, preclinical data concordantly show a promising radioprotective capacity of statins.

  16. Radioprotective effects of active compounds from Acanthopanax senticosus of Lesser Khingan Mountain in China

    Science.gov (United States)

    Lu, Weihong; Sun, Yeqing; Shi, Jinming

    Bioactive compounds including polysaccharides, flavones, syringin and eleutheroside E were extracted from wild Acanthopanax senticosus and purified by chromatography. In vitro and in vivo anti-radiation activities of the compounds were compared. In vitro radical scavenging results showed that polysaccharides and flavones were more effective than syringin and eleutheroside E in In vivo study proved that polysaccharides and flavones were effective in protecting mice from heavy ion radiation induced oxidative damages. Also, the activity of polysaccharides and flavones in repressing expression changes of radiation response proteins including heat shock protein, disulfide-isomerase and glutathione S-transferase were also found by our results. Moreover, the radioprotective effects were more significant when polysaccharides and flavones were used together.

  17. Enzymeaticial analysis and soluble proteins assays on radioprotective effects of cordyceps militaris

    Energy Technology Data Exchange (ETDEWEB)

    Yoo, Beong Gyu [Wonkwang Health Science College, Iksan (Korea, Republic of); Park, Joon Chul [Ansan 1 College, Ansan (Korea, Republic of)

    2001-06-01

    Effect of single pre-administration of Cordyceps militaries (Cm) extract on the survival ratio, body weight and organ weight changes and blood cell counts after whole-body {gamma}-irradiation were investigated. The single pre-administration of Cm extract at 24 hrs before {gamma}-irradiation increased the 40-day survival ration of irradiated mice from 60.1% to 71/4%. The administration of Cm extract completely prevented weight reductions of spleen and thymus produced by {gamma}-irradiation (P<0.01, P<0.05). Similar but somewhat less radioprotective effect was also found in the testis of the Cm treated mice. The administration of Cm extract retarded the reduction of both leukocyte and lymphocyte counts occured during the first 7 days and accelerated the recovery of the counts thereafter. The extract also accelerated the recovery of the erythrocyte counts occurred after the day 21th. SDS-polyacrylamide gel electrophoresis of the soluble proteins extracted from various organs did not reveal differences to any extent in all groups except in the levers of the irradiated and extract treated groups, in which some proteins were missing or less present. Also, the result of general intra and extra mycelial enzyme assays with Cm, extramycelial enzyme activity was relatively higher than the intramycelial enzyme. Cm appeared to indicate that {alpha}-amylase was the highest among the enzymes and gluosidase and chitinase were followed. Since the spleen, thymus and testis have been well known as radiosensitive organs, the protective action of Cm extract on irradiated mice may be responsible for its enhancing recovery of these organs. Although the exact mechanism in protective effect of Cm extract on irradiated mice is not clear yet, the present study is the first report regarding the Cm which was tested and found to be a potential radioprotective agent.

  18. Expression of Cryptosporidium parvum thioredoxin peroxidase in COS-7 cells confers radioprotection.

    Science.gov (United States)

    Hong, Semie; Kim, Jae-Hwan; Yoon, Sejoung; Kim, Kyoungjin; Sim, Seobo; Park, Woo-Yoon; Yu, Jae-Ran

    2016-04-01

    Cryptosporidium parvum is one of the most radioresistant organisms identified to date. In a previous study, we found that thioredoxin peroxidase (CpTPx) was significantly upregulated in this species following exposure to high dose (10 kGy) of γ-irradiation. To assess the potential of CpTPx to confer radioprotection in mammalian cells, it was expressed in COS-7 African green monkey kidney cells (CpTPx-COS7). For comparison, the thioredoxin peroxidase of Cryptosporidium muris (CmTPx) was also expressed in these cells (CmTPx-COS7 cells), which has been confirmed to have lesser antioxidant activity than CpTPx in the previous study. Notably, the survival rates of CpTPx-COS7 cells were significantly higher (12-22%) at 72 h after 8 Gy irradiation than CmTPx-COS7 or non-transfected COS-7 (ntCOS-7) counterparts. In addition, CpTPx revealed a 50% of ROS reduction in irradiated CpTPx-COS7 cells, while γ-H2AX DNA damage marker expression was not significantly changed. Furthermore, the amount of apoptosis only increased to about 120% after 2-8 Gy irradiation compared to 200-300% increase observed in ntCOS-7 cells. CmTPx was shown to have antioxidant and DNA damage protection activities; however, these activities were always lower than those of CpTPx. These results suggest that the potent antioxidant and protective activities of CpTPx are well conserved in this cell-based system and that CpTPx contributed to the radioprotection of mammalian cells through its exceptional antioxidant activity.

  19. Radioprotective Agents

    Science.gov (United States)

    1982-01-01

    claimed to be effective are gallic acid derivatives, eg, sodium gallate 12053-21-61 (295-297) and propyl gallate 1121-79-91 (298). p...inhibition of a-adrenergic receptors can be achieved through the use of the antiradiation agents 2-(5-aminopentylamino)ethanephos- phorothioic acid ...tissue was ap- preciated immediately as a potential medical set, and they were put to use en- thusiastically. Early workers did notice an erythematous

  20. Radio-protection and decontamination operations on the central vibrating channels of the reactor G 3; Radioprotection et operations de decontamination sur le couloir vibrant central de la pile G.3

    Energy Technology Data Exchange (ETDEWEB)

    Chassany, J.Ph.; Cohendy, G.; Rodier, J. [Commissariat a l' Energie Atomique, Centre de Production de Plutonium, Marcoule (France). Centre d' Etudes Nucleaires

    1965-07-01

    The dose rate in the vibrating channels room of the discharge system, which is due to the contamination of one of the channels by a ruptured can after clad failure was high. It was necessary to intervene in order that normal maintenance could be carried out on this equipment. The operation was carried out from a neighbouring room using cleaning tubes, and then directly, after numerous precautions had been taken. Radio-protection was made very difficult because of the irradiation and of the powdery state of the contamination. The average individual integrated dose for the 122 persons having taken part in this 2-month operation was 362 mrem. Thanks to the close collaboration between the operational, emergency and radio-protection personnel, this operation was executed smoothly and rapidly. (authors) [French] Le debit de dose dans la salle des couloirs vibrants du systeme de dechargement, provenant de la contamination de l'un d'entre eux par une cartouche a rupture de gaine etait important. Une intervention a ete necessaire pour permettre l'entretien normal de ce materiel. Elle s'est faite d'abord a partir d'une salle voisine, en utilisant des tuyaux de lavage, puis directement, moyennant de nombreuses precautions. La radioprotection a ete rendue tres difficile a cause de l'irradiation et de la forme particulierement pulverulente de la contamination. La dose individuelle moyenne integree par les 122 agents ayant participe a cette operation qui a dure 2 mois, a ete de 362 mrem. C'est grace a la collaboration etroite de l'exploitation, de l'intervention et de la radioprotection qu'elle a pu se derouler aussi rapidement dans de bonnes conditions. (auteurs)

  1. Entangled inequalities, divergent struggles: migration and the Argentine textile industry

    Directory of Open Access Journals (Sweden)

    Sergio Caggiano

    2014-09-01

    Full Text Available Despite the economic recovery that followed the 2001-2002 crisis in Argentina, sectors that rely on a significant migrant worker presence, such as textiles, have maintained and consolidated previously-existing forms of exploitation and discrimination. In this context, trade unions and other civil society actors are fighting against the inequalities that affect Bolivian migrant workers in the textile industry in Buenos Aires and La Plata. This article seeks to understand some of the limitations of that struggle. Such limitations relate to the difficulty of acting on entangled inequalities, and respond to the seemingly irreconcilable forms of association in terms of class, nationality or ethnicity of these organisations, which generate divergent characterisations of the inequalities and of the actors involved.

  2. Radioprotection in the infirmary praxis in service of hemodynamic; Radioprotecao na praxis da enfermagem em servico de hemodinamica

    Energy Technology Data Exchange (ETDEWEB)

    Flor, Rita de Cassia, E-mail: flor@ifsc.edu.br; Gelbcke, Francine Lima, E-mail: fgelbcke@ccs.ufsc.b [Universidade Federal de Santa Catarinha (CCS/UFSC), Florianopolis, SC (Brazil). Secretaria do Programa de Pos-Graduacao em Enfermagem

    2011-10-26

    Qualitative study made in a hemodynamic service at Santa Catarina, Brazil, viewing to analyse the attitude of workers in infirmary related to the use of radioprotection measurements in interventionist procedures. A methodology of Labor Psycho dynamics was used through the observations, collective interviews and the document analysis. Totally it was realized 36 encounters, completed a total of 54 observation hours. The results have shown that the workers used defense strategies for justification the not use of some radioprotection measurements. Yet, become evident that the measurements related to the distance from the radiation source and the exposure time have not used sometimes, perhaps due to negligence. Finally, it was concluded that, some attitudes adopted by the workers referred to the lack of a continued educational program

  3. Evaluation of radioprotective effect of aloe vera and zinc/copper compounds against salivary dysfunction in irradiated rats.

    Science.gov (United States)

    Nejaim, Yuri; I V Silva, Amaro; V Vasconcelos, Taruska; J N L Silva, Emmanuel; M de Almeida, Solange

    2014-09-01

    The aim of this study was to evaluate the radioprotective and reparative effects of compounds based on aloe vera, zinc, and copper against salivary gland dysfunction in Wistar rats. A total of 150 Wistar rats were randomly divided into 12 groups, in which the animals received aloe vera and/or zinc and copper. In eight of these groups the animals were also subjected to irradiation before or after administration of the substances. After 27 days, sialometry tests were performed. Data were analyzed using ANOVA and the Tukey test (P aloe vera before or after irradiation showed a significantly higher salivary flow rate than rats that had been simply irradiated. When both substances were administered, a statistically significant difference in the salivary flow rate was observed in comparison with the irradiation alone group seven days after irradiation. The present results suggest that aloe vera exerts positive protective and reparative effects, and can be considered a potential radioprotective substance.

  4. Radioprotective effect of the extract of Ziziphus joazeiro and Anacardium occidentale on embryos of Biomphalaria glabrata submitted to ionizing radiation

    Energy Technology Data Exchange (ETDEWEB)

    Siqueira, Williams N.; Silva, Luanna R.S.; Silva, Edvane B. [Universidade Federal de Pernambuco (DEN/UFPE), Recife, PE (Brazil). Dept. de Energia Nuclear. Grupo de Estudos em Radioprotecao e Radioecologia; Silva, Ronaldo C. [Universidade Federal de Pernambuco (UFPE), Recife, PE (Brazil). Dept. de Genetica; Lacerda, Laila B.N.; Silva, Hianna A.M.F.; Santos, Mariana L.O.; Sa, Jose L.F.; Melo, Ana M.M.A. [Universidade Federal de Pernambuco (UFPE), Recife, PE (Brazil). Dept. de de Biofisica e Radiobiologia. Lab. de Radiobiologia

    2011-07-01

    Electromagnetic radiations are energies that can be classified as non-ionizing and ionizing. This type of energy is propagated by a material medium and the vacuum. The important characteristic of ionizing radiation is the localized release of large amounts of energy. The biological effects of radiation result principally from damage to DNA, which is the critical target. Given these harmful effects caused by radiation highlights the importance of acquiring knowledge about the radioprotective substance, because they act to protect the living tissue, decreasing the damage he caused by the effects of radiation. In this study we investigated the radioprotective effect of extract hydroalcoholic of Ziziphus joazeiro and Anacardium occidentale on embryos of Biomphalaria glabrata. The embryos of Biomphalaria glabrata pigmented were divided into 18 groups of 100 specimens. The experimental groups were exposed to the extracts at a concentration of 200 ppm and then irradiated. For irradiation, we used a source of {sup 60}Co (Gammacell of Radionics Labs. Dose rate = 4.359 Gy/h). The viability of the embryos was examined using a stereoscopic microscope and statistical analysis was performed using the test Student-Newman-Keuls and {chi}{sup 2}. Our results showed that the extracts of hydroalcoholic Ziziphus joazeiro showed radioprotective effect and that the aqueous extract of the bark of Anacardium occidentale exhibited a reduction in its embryotoxic effect. (author)

  5. Haematopoiesis radioprotection in Balb/c mice by an aqueous mycelium extract from the Basidiomycete Pleurotus ostreatus mushroom.

    Science.gov (United States)

    Llauradó, G; Morris, H J; Tamayo, V; Lebeque, Y; Beltrán, Y; Marcos, J; Moukha, S; Creppy, E E; Bermúdez, R C

    2015-01-01

    The study examined the radioprotective activity of an aqueous extract from Pleurotus ostreatus mycelium administered to Balb/c mice. Male mice were whole-body irradiated on day 0 ((60)Co, at 0.43 Gy/min) and divided into two groups. The extract was administered intraperitoneally to one group (100 mg/kg) on days - 10 to - 6 and - 2 to +1 with respect to the irradiation. The irradiated-control group was injected with saline solution; non-irradiated mice were used as negative controls. The radioprotective effect was evident by increases in bone marrow cellularity (5.1 × 10(6)/femur vs. 1.1 × 10(6)/femur in saline-control mice, p < 0.05), leucocyte counts (10.5 × 10(9)/L vs. 4.5 × 10(9)/L, p < 0.05), and spleen cellularity (11.2 × 10(7)/spleen vs. 6.2 × 10(7)/spleen, p < 0.05). The extract stimulated macrophage phagocytic activity as judged by a faster rate of carbon clearance in terms of absorbance ratios (1.62 vs. 2.01, p < 0.05). Therefore, this extract may be a candidate therapeutic agent with radioprotective activity for haematopoiesis damage, particularly to cells involved in immune function.

  6. Comparative efficacy and the window of radioprotection for adrenergic and serotoninergic agents and aminothiols in experiments with small and large animals.

    Science.gov (United States)

    Vasin, Mikhail V; Ushakov, Igor B

    2015-01-01

    This review gives a comparative evaluation of the radioprotective properties and the therapeutic index (TI) of radioprotectors from various pharmacological group in experiments on both small and large animals. It presents a hypothesis explaining the decrease in the TI of cystamine and 5-methoxytryptamine (mexamine), and the retention of that of α1-adrenomimetic indralin, and also compares the effects on large and small animals. The considerable differences in the therapeutic indices of catecholamines, serotonin and cystamine are a consequence of specific features of their mechanisms of radioprotective action. Radioprotectors acting via receptor mediation tend to provide a more expanded window of protection. The reduction in the TI of cystamine in larger animals, such as dogs, may be caused by the greater increase in toxicity of aminothiols in relation to the decrease in their optimal doses for radioprotective effect in going from mice to dogs, which is a consequence of the slower metabolic processes in larger animals. The somatogenic phase of intoxication by cystamine is significantly longer than the duration of its radioprotective effect, and increases with irradiation. The decrease in the radioprotective effect and the TI of mexamine in experiments with dogs may be caused by their lower sensitivity to the acute hypoxia induced by the mexamine. This is because of lower gradient in oxygen tension between tissue cells and blood capillaries under acute hypoxia that is determined by lower initial oxygen consumption in a large animal as compared with a small animal. Indralin likely provides optimal radioprotective effects and a higher TI for large animals via the increased specificity of its adrenergic effect on tissue respiration, which supports the development of acute hypoxia in the radiosensitive tissues of large animals. The stimulatory effect of indralin on early post-irradiation haematopoietic recovery cannot provide a high level of radioprotective action for

  7. Hydrological cycles and trends in the NW Argentine Andes since 1940

    Science.gov (United States)

    Castino, Fabiana; Bookhagen, Bodo; Strecker, Manfred

    2016-04-01

    Strong spatiotemporal variability characterizes the hydrometeorological pattern in the NW Argentine Andes, draining parts of the most populated and economically important areas of South America. During the summer monsoon season (DJF), the eastern flanks of the central Andes are characterized by deep convection, exposing them to extreme hydrometeorological events. These often result in floods and landslides with disastrous effects on the local populations. Here, we analyze river discharge to explore long-term hydrological variability in NW Argentine Andes and the linked climate controlling processes. We rely on 13 daily river discharge time series relevant to drainage basins spanning several size orders (102-104 km2) starting in 1914 and define different hydro-climate indices both for the mean and the extreme hydrological events. We apply quantile regression to investigate long-term trends and spectral analysis associated with cross-correlation with SST-based climate indices to identify links to large-scale climate variability modes. River discharge presents a pronounced and coherent variability signal in South America, particularly for wide drainage basins, such as the Amazon and Paraná/La Plata rivers, strongly associated to Pacific and Atlantic Oceans Sea Surface Temperature (SST) anomalies (i.e. ENSO, PDO, AMO). Our analysis evidences that in the NW Argentine Andes, mean discharge values are characterized by statistically significant, mostly positive, long-term trends since 1940, whereas the extreme events present a more non-unidirectional trend pattern. Also, coherent multi-annual to multi-decadal cycles characterizing the discharge pattern have been identified, suggesting that processes linked to SST anomaly-modes strongly control the hydrometeorology variability in the NW Argentina Andes.

  8. Hantavirus reservoir Oligoryzomys longicaudatus spatial distribution sensitivity to climate change scenarios in Argentine Patagonia

    Directory of Open Access Journals (Sweden)

    González Paula LM

    2009-07-01

    Full Text Available Abstract Background Oligoryzomys longicaudatus (colilargo is the rodent responsible for hantavirus pulmonary syndrome (HPS in Argentine Patagonia. In past decades (1967–1998, trends of precipitation reduction and surface air temperature increase have been observed in western Patagonia. We explore how the potential distribution of the hantavirus reservoir would change under different climate change scenarios based on the observed trends. Methods Four scenarios of potential climate change were constructed using temperature and precipitation changes observed in Argentine Patagonia between 1967 and 1998: Scenario 1 assumed no change in precipitation but a temperature trend as observed; scenario 2 assumed no changes in temperature but a precipitation trend as observed; Scenario 3 included changes in both temperature and precipitation trends as observed; Scenario 4 assumed changes in both temperature and precipitation trends as observed but doubled. We used a validated spatial distribution model of O. longicaudatus as a function of temperature and precipitation. From the model probability of the rodent presence was calculated for each scenario. Results If changes in precipitation follow previous trends, the probability of the colilargo presence would fall in the HPS transmission zone of northern Patagonia. If temperature and precipitation trends remain at current levels for 60 years or double in the future 30 years, the probability of the rodent presence and the associated total area of potential distribution would diminish throughout Patagonia; the areas of potential distribution for colilargos would shift eastwards. These results suggest that future changes in Patagonia climate may lower transmission risk through a reduction in the potential distribution of the rodent reservoir. Conclusion According to our model the rates of temperature and precipitation changes observed between 1967 and 1998 may produce significant changes in the rodent

  9. Human fibroblast growth factor 20 (FGF-20; CG53135-05): a novel cytoprotectant with radioprotective potential.

    Science.gov (United States)

    Maclachlan, T; Narayanan, B; Gerlach, V L; Smithson, G; Gerwien, R W; Folkerts, O; Fey, E G; Watkins, B; Seed, T; Alvarez, E

    2005-08-01

    The aim was to evaluate the radioprotective properties of recombinant human fibroblast growth factor 20 (FGF-20; CG53135-05) in vitro and in vivo and to examine its effects on known cellular pathways of radioprotection. Relative transcript levels of the cyclooxygenase 2 (COX2), Mn-super oxide dismutase (SOD), CuZn-SOD, extracellular (EC)-SOD, nuclear respiratory factor 2 (Nrf2), glutathione peroxidase 1 (GPX1) and intestinal trefoil factor 3 (ITF3) genes, which are involved in radiation response pathways, were assessed by reverse transcriptase-polymerase chain reaction (RT-PCR) in NIH/3T3, IEC18, CCD-18Co, CCD-1070sk and human umbilical vein endothelial cells (HUVEC) cells exposed to FGF-20. Activation of the radioprotective signal transduction pathways initiating with the serine/threonine Akt kinase and the extracellular regulated kinase (ERK) were analysed. Levels of intracellular hydrogen peroxide and cytosolic redox potential were also measured in irradiated and unirradiated cells in the presence or absence of FGF-20. The effects of FGF-20 on cell survival in vitro following ionizing radiation were evaluated using clonogenic assays. To test the potential activity of FGF-20 as a radioprotectant in vivo, mice were administered a single dose of FGF-20 (4 mg kg(-1), intraperitoneally (i.p.) 1 day before lethal total-body irradiation and evaluated for survival. In vitro exposure to FGF-20 increased expression of the Nrf2 transcription factor and oxygen radical scavenging enzymes such as MnSOD, activated signal transduction pathways (ERK and Akt) and resulted in increased survival of irradiated cells in vitro. FGF-20 treatment also resulted in a concomitant reduction in intracellular levels of injurious reactive oxygen species (ROS) following acute ionizing irradiation. Finally, prophylactic administration of FGF-20 to mice before potentially lethal, whole-body X-irradiation led to significant increases in overall survival. FGF-20 reduced the lethal effects of acute

  10. A new species of Havelockia Pearson, 1903 from the Argentine Sea (Holothuroidea: Dendrochirotida: Sclerodactylidae).

    Science.gov (United States)

    Martinez, Mariano I; Thandar, Ahmed S; Penchaszadeh, Pablo E

    2013-02-04

    Havelockia pegi sp. nov., is here described from shallow waters of the Argentine Sea. This new species is distinctive in the purple colouration of its tentacles, scarcity of body wall ossicles and the presence of rosette-shaped ossicles in both the introvert and the tentacles. It is not closely related to any of its congenors. This is the first record of a true sclerodactylid from Argentina. Thandarum hernandezi Martinez & Brogger, 2012, described in the family Sclerodactylidae, is now classified in the family Sclerothyonidae.

  11. The argentine territory as an international venue for the administration of punishment

    OpenAIRE

    Argenti, Natalia

    2014-01-01

    El objetivo principal de este trabajo es poner de relieve los múltiples problemas que deberían afrontarse para que las cárceles argentinas administren las penas de acuerdo con el Estatuto de Roma (art. 103). La propuesta tiene eficacia cuantificable en términos del tratamiento humanitario de los reos y promueve, en general, el ejercicio de sus derechos más vitales y básicos. The primary goal of this work is to highlight the various problems that should be addressed so that Argentine prison...

  12. Equity during an economic crisis: financing of the Argentine health system.

    Science.gov (United States)

    Cavagnero, Eleonora; Bilger, Marcel

    2010-07-01

    This article analyses the redistributive effect caused by health financing and the distribution of healthcare utilization in Argentina before and during the severe 2001/2002 economic crisis. Both dramatically changed during this period: the redistributive effect became much more positive and utilization shifted from pro-poor to pro-rich. This clearly demonstrates that when utilization is contingent on financing, changes can occur rapidly; and that an integrated approach is required when monitoring equity. From a policy perspective, the Argentine health system appears vulnerable to economic downturns mainly due to high reliance on out-of-pocket payments and the strong link between health insurance and employment.

  13. The first study of the micro-fauna of middle Cambrian olistoliths in the Argentine Precordillera

    OpenAIRE

    Fahlgren, Elise; Tranvik, Maria

    2015-01-01

    This study implies a survey of a somewhat unexplored Cambrian carbonate formation in the Argentine Precordillera (AP) located in western Argentina, close to the city of San José de Jáchal. The carbonate platform of the AP is a unique piece of the South American geology and is in this study partly surveyed and compared with the Stephen Formation of northern Canada, a middle Cambrian unit renowned for its contents of exceptionally well preserved soft bodied fossils named the Burgess Shale biota...

  14. The widespread collapse of an invasive species: Argentine ants (Linepithema humile) in New Zealand

    OpenAIRE

    2011-01-01

    Synergies between invasive species and climate change are widely considered to be a major biodiversity threat. However, invasive species are also hypothesized to be susceptible to population collapse, as we demonstrate for a globally important invasive species in New Zealand. We observed Argentine ant populations to have collapsed in 40 per cent of surveyed sites. Populations had a mean survival time of 14.1 years (95% CI = 12.9–15.3 years). Resident ant communities had recovered or partly re...

  15. Graphic correlation of Argentine Precordillera and North American Lower/Middle Ordovician sections

    Institute of Scientific and Technical Information of China (English)

    Walter C.Sweet; Guillermo L.Albanesi

    2006-01-01

    @@ Present work demonstrates that a level equivalent to the proposed Whiterockian basal GSSP can be located graphically in a composite section anchored by the Niquivil section of the Argentine Precordillera. The FAD of Cooperignathus aranda in the Niquivil composite section, a candidate for GSSP of the Lower/Middle Ordovician boundary, projects to a level very close to the FAD of Tripodus laevis in the Whiterockian reference section. The conodont-based framework reported here includes the potential for recognition of the proposed Whiterock Canyon-based GSSP, the Cooperignathus aranda-based GSSP, and, possibly, the Baltoniodus triangularisbased GSSP, recently proposed.

  16. Society for Vascular Medicine

    Science.gov (United States)

    ... Certification with this new online course from the Society for Vascular Medicine. Learn more. Looking for a ... jobs are listed right now. Copyright © 2016 The Society for Vascular Medicine. All Rights Reserved.

  17. American Society of Nephrology

    Science.gov (United States)

    ... stay safe! – @ASNKidney on Twitter ASN News Feed Society Events Interact With ASN rss Facebook Twitter YouTube ... Podcast ASN Communities Share ASN User Login © American Society of Nephrology top Text Size + - Translate Sitemap Terms ...

  18. Society for Ambulatory Anesthesia

    Science.gov (United States)

    ... We Represent Ambulatory and Office-Based Anesthesia The Society for Ambulatory Anesthesia provides educational opportunities, encourages research ... 6620 | E-mail: info@sambahq.org Copyright | 2016 Society for Ambulatory Anesthesia Home | Search | Terms | Privacy Policy | ...

  19. Ehlers-Danlos Society

    Science.gov (United States)

    ... Scientific Board Staff Volunteer Leaders The Ehlers-Danlos Society Center for EDS Research & Clinical Care Our History ... Message Boards Patient Resource Library The Ehlers-Danlos Society Center for EDS Research & Clinical Care Loose Connections ...

  20. Pediatric Endocrinology Nurses Society

    Science.gov (United States)

    ... International Welcome to PENS The Pediatric Endocrinology Nursing Society (PENS) is committed to the development and advancement ... PENS@kellencompany.com • Copyright © 2016 Pediatric Endocrinology Nursing Society • ALL RIGHTS RESERVED • Privacy Policy • Admin

  1. American Society of Echocardiography

    Science.gov (United States)

    American Society of Echocardiography Join Ase Member Portal Log In Membership Member Portal Log In Join ASE Renew Benefits Rates FASE – Fellow of the American Society of Echocardiography Member Referral Program FAQs Initiatives Advocacy ...

  2. International Transplant Nurses Society

    Science.gov (United States)

    ... The Mission of ITNS The International Transplant Nurses Society is committed to the promotion of excellence in ... 20-1589538 Copyright © 2006 - 2014 International Transplant Nurses Society (ITNS). No materials, including graphics, may be reused, ...

  3. American Urogynecologic Society

    Science.gov (United States)

    ... Patient Site » PFD Registry » Contact Us American Urogynecologic Society 1100 Wayne Avenue, Suite 670 Silver Spring, MD ... Us | Privacy Policy | HONcode Accredited © 2016 American Urogynecologic Society. All rights reserved.

  4. American Headache Society

    Science.gov (United States)

    ... Applications are now being accepted for the 2017 International headache Society scheduled for January 20 - 22, 2017 at the ... READ MORE Sep 7 18th Congress of the International Headache Society Vancouver, BC Canada , Vancouver Convention Centre READ MORE ...

  5. Reclaiming Society Publishing

    Directory of Open Access Journals (Sweden)

    Philip E. Steinberg

    2015-07-01

    Full Text Available Learned societies have become aligned with commercial publishers, who have increasingly taken over the latter’s function as independent providers of scholarly information. Using the example of geographical societies, the advantages and disadvantages of this trend are examined. It is argued that in an era of digital publication, learned societies can offer leadership with a new model of open access that can guarantee high quality scholarly material whose publication costs are supported by society membership dues.

  6. [Radioprotective effect of helium-neon laser radiation for fibroblast cells].

    Science.gov (United States)

    Voskanian, K Sh; Mitsyn, G V; Gaevskiĭ, V N

    2007-01-01

    Effects of combined exposure to 633-nm laser waves and gamma-radiation, and laser waves and protons with the energy of 150 MeV on survivablilty of mice fibroblast cells C3H10T1/2 were compared. Cell suspension (1 - 5 x 10(5) cells/ml) was distributed in 2-ml plastic vials with 1 cm in diameter time interval between two exposures in a combination was no more than 60 s. immediately after exposure a required quantity of cells was inoculated in special vials for survivability assessment. Based on results of the experiment, preliminary and repeated laser treatment was favorable to survivability of fibroblast cells subjected to gamma- or proton irradiation (dose variation factor was within 1.3 to 2.2). Simultaneous exposure of C3H10T1/2 cells to the laser and proton beams also increased their survivability. The radioprotective effect of the helium-neon laser on fibroblasts earlier exposed to ionizing radiation is of chief interest, as most of the present-day radioprotectors are effective only if introduced into organism prior to exposure.

  7. The effects of selenium on glutathione peroxidase activity and radioprotection in mammalian cells

    Energy Technology Data Exchange (ETDEWEB)

    Diamond, A.M.; Murray, J.L.; Dale, P.; Tritz, R.; Grdina, D.J.

    1995-09-05

    The media of representative mammalian cell lines were supplemented with low levels of selenium in the form of sodium selenite in order to investigate the effects of selenium on mammalian cells. Following incubation in 30 nM sodium selenite, these cells were assayed for changes in glutathione peroxidase (GPx) activity. The cells examined included NIH 3T3 mouse fibroblasts, PC12 rat sympathetic precursor cells, SupT-1 human lymphocytes, MCF-7{sup adr} human breast carcinoma cells and AA8 Chinese hamster ovary cells. Selenium supplementation resulted in a marginal increase in GPx activity for the NIH 3T3, MCF-7{sup adr} and Supt-1 cells but stimulated GPx activity approximately 5-fold in PC12 and AA8 cells. AA8 cells were selected to evaluate whether selenium supplementation was radioprotective against {sup 60}cobalt gamma irradiation. Protection against radiation-induced mutation was measured by evaluating mutation frequency at the hprt locus. In this assay, preincubation of AA8 CHO cells significantly protected these cells from exposure to 8 Gy.

  8. Physique appliquée à l’exposition externe dosimétrie et radioprotection

    CERN Document Server

    Antoni, Rodolphe

    2013-01-01

    Cet ouvrage fait la synthèse de nombreuses années d'expériences en dosimétrie et techniques de protection contre l’exposition externe, aussi bien dans le domaine industriel que médical. Il rappelle les concepts physiques de base puis propose un certain nombre d'outils d’évaluation des nuisances radiologiques, et les moyens de s'en prémunir, en détaillant notamment les techniques de calcul pour des blindages appropriés. Le premier chapitre traite de la définition des grandeurs radiométriques et dosimétriques fondamentales. Il permet d’aborder au chapitre 2 la question de l'interaction rayonnement-matière sous un angle dédié au dépôt de la dose dans les tissus biologiques. Le troisième chapitre définit quant à lui les grandeurs de protection et les grandeurs opérationnelles liées à la radioprotection. Dans les deux chapitres suivants, l’accent a été mis sur la définition des risques et contre-mesures associées (i.e. protections biologiques) inhérents aux sources de rayonnemen...

  9. Nitroxides as antioxidants – possibilities of their application in chemoprevention and radioprotection

    Directory of Open Access Journals (Sweden)

    Sabina Tabaczar

    2011-01-01

    Full Text Available Nitroxides as stabile organic radicals were used initially as spin labels in spectroscopy of electron paramagnetic resonance (EPR with respect to parameters such as pH of an intercellular environment, oxygenation of cells and tissues, fluidity of biological membranes, conformational state and topography of proteins. Nitroxides have also been used in biology and medicine as contrast agents in magnetic resonance imaging (MRI. When their antioxidant activities were discovered, an era of research on the potential utility of these agents began. Nitroxides can modulate the redox state of the cell by participation in oxidation/reduction reactions. Therefore, they are extensively examined in various models of oxidative stress. The antioxidant effect of nitroxides is a result of their ability to catalyze dismutation of superoxide radical (superoxide dismutase-like activity, inhibit lipid peroxidation, prevent Fenton and Haber-Weiss reactions by oxidation of transition metal ions to a higher oxidative state, and confer catalase-like activity on heme proteins. In the present paper the antioxidative mechanisms of nitroxides are presented. The relation between structure, function and the rate of nitroxide reduction inside cells and tissues is also presented. The application of nitroxides in chemoprevention and radioprotection is discussed.

  10. Radioprotective and Antioxidant Effect of Resveratrol in Hippocampus by Activating Sirt1

    Directory of Open Access Journals (Sweden)

    Jianguo Li

    2014-04-01

    Full Text Available Reactive oxygen species can lead to functional alterations in lipids, proteins, and nucleic acids, and an accumulation of ROS (Reactive oxygen species is considered to be one factor that contributes to neurodegenerative changes. An increase in ROS production occurs following irradiation. Neuronal tissue is susceptible to oxidative stress because of its high oxygen consumption and modest antioxidant defenses. As a polyphenolic compound, resveratrol is frequently used as an activator of Sirt1 (Sirtuin 1. The present study was designed to explore the radioprotective and antioxidant effect of resveratrol on Sirt1 expression and activity induced by radiation and to provide a new target for the development of radiation protection drugs. Our results demonstrate that resveratrol inhibits apoptosis induced by radiation via the activation of Sirt1. We demonstrated an increase in Sirt1 mRNA that was present on 21 days of resveratrol treatment following irradiation in a concentration-dependent manner. Such mRNA increase was accompanied by an increase of Sirt1 protein and activity. Resveratrol effectively antagonized oxidation induced by irradiation, supporting its cellular ROS-scavenging effect. These results provide evidence that the mitochondrial protection and the antioxidant effect of resveratrol contribute to metabolic activity. These data suggest that Sirt1 may play an important role to protect neurons from oxidative stress.

  11. Radioprotective Action of Low-Intensity Light into the Red Absorption Band of Endogenous Molecular Oxygen

    Science.gov (United States)

    Ivanov, A. V.; Mashalov, A. A.; Zakharov, S. D.

    2016-08-01

    Application of ionizing radiation in oncology (radiation therapy) is a widespread way to eliminate malignant tumors. Normal tissues are inevitable included in any radiation field, and their reliable protection is actual till now. All attempts to solve the problem are based on search of effective radioprotectors, i.e. chemical compounds of various classes, which should be entered into the patient. To date about 50,000 compounds with some radioprotection properties had been tested, but the most effective of them have been simultaneously the most toxic. Here the preliminary results of researches devoted to development of an optical technique on basis of the light-oxygen effect for the protection of women with breast cancer from side effects of the radiation therapy are presented. A low intensity emission of the semiconductor laser in a red spectral interval was used to excite a very small quantity of endogenous molecular oxygen in O2(1Δg) state. It is shown, that application of the method at occurrence of earliest signs of radiation injury allows notably reducing dangerous breaks in radiation therapy course.

  12. Induction of radiation resistance and radio-protective mechanism. On the reactive oxygen and free radical

    Energy Technology Data Exchange (ETDEWEB)

    Yukawa, Osami [National Inst. of Radiological Sciences, Chiba (Japan). Research Center for Radiation Safety

    2003-03-01

    Radical scavenging system for reactive oxygen species (ROS) leading to radio-protection is reviewed on findings in animals, tissues and cells. Protection against oxygen toxicity in evolution can be seen in anaerobes' superoxide dismutase (SOD) over 3500 million years ago. ROS is generated endogenously and also by radiation. However, the intracellular sites of the generated ROS are different depending on its cause. The protection is done through enzymes like SOD, peroxidase, catalase, glutathione-related enzymes and through substances like GSH, {alpha}-tocopherol, ascorbic acid etc. Induction of ROS scavenging substances related with radio-resistance includes the responses to the low dose radiation (5-50 cGy) in those enzymes described above; to middle to high dose radiation (1-30 Gy) in a similar and in other unknown mechanisms; to exposure of ROS like H{sub 2}O{sub 2} at low concentration; and to antioxidant treatment. The cross-resistance between radiation and drugs suggests necessity of this induction. (N.I.)

  13. Radioprotective effect of sodium selenite on bone repair in the tibia of ovariectomized rats

    Energy Technology Data Exchange (ETDEWEB)

    Freitas, Deborah Queiroz de; Neves, Ellen Gaby; Boscolo, Frab Norberto; Almeida, Solange Maria de [University of Campinas (UNICAMP), Piracicaba, SP (Brazil). Piracicaba Dental School. Department of Oral Diagnosis. Oral Radiology Area; Ramos-Perez, Flavia Maria de Moraes [Federal University of Pernambuco, Recife, PE (Brazil). Department of Clinical and Preventive Dentistry; Marques, Marcelo Rocha [University of Campinas (UNICAMP), Piracicaba, SP (Brazil). Piracicaba Dental School. Division of Histology. Department of Morphology

    2012-07-01

    This study evaluated protection by selenium (Se) in the bone repair process in ovariectomized rats after irradiation. For such purpose, 80 ovariectomized female Wistar rats were randomly divided into 4 experimental groups: ovariectomized (Ov), Ov/Se, Ov/irradiated (Irr) and Ov/ Se/Irr. A bone defect was created on the tibia of all animals 40 days after ovariectomy. Two days after surgery, only the Ov/Se and Ov/Se/Irr rats received 0.8 mg Se/kg. Three days after surgery, only the Ov/Irr and Ov/Se/Irr rats received 10 Gy of x-rays on the lower limb region. The animals were euthanized at 7, 14, 21 and 28 days after surgery to assess the repair process, which was evaluated by analysis of trabecular bone number (Masson Trichrome) and birefringence analysis (Picrosirius). It was possible to observe a delay in the bone repair process in the ovariectomized/irradiated group and similarity between the ovariectomized, Ov/Se and Ov/Se/Irr groups. In conclusion, sodium selenite exerted a radioprotective effect in the bone repair of tibia of ovariectomized rats without toxicity. (author)

  14. Radioprotective effect of Ganoderma lucidum (Leyss. ex. Fr. ) Karst after X-ray irradiation in mice

    Energy Technology Data Exchange (ETDEWEB)

    Hsu, H.Y.; Lian, S.L.; Lin, C.C. (Kaohsiung Medical College (Taiwan))

    1990-01-01

    Six to seven week old male mice of ICR strain were exposed to 500 or 650 cGy of X-ray during experiments to determine if Ganoderma lucidum could be a factor in modification of radiation damage. Continuous intraperitoneal injection of the extract from Ganoderma lucidum before or after irradiation of 500 and 650 cGy of X-ray was found to improve the 30-day survival fractions of ICR mice, but wasn't significant by statistical analysis. The administration also enhanced the recoveries of the body weights and increased the recovery of hemograms of irradiated mice from radiation damage by injecting before or after radiation exposure, especially for the treatment of 500 cGy irradiation. The 10-day CFUs was significantly higher for Ganoderma lucidum treated groups than for untreated groups. However, the differences of radioprotective effect between the X-ray irradiated groups with Ganoderma lucidum pretreated and post-treated were not significant (p greater than 0.05).

  15. Indicators of radioresistance modified by radioprotective agents report 1. delta. pO/sub 2/ as indicator of degree of mexamine-induced enhancement of radioresistance of rat bone marrow. [X rays

    Energy Technology Data Exchange (ETDEWEB)

    Rozhdestvenskii, L.M.; Nikolaeva, S.I.

    1978-01-01

    The indicator approach to evaluation of effects of radioprotective agents is substantiated. A correlation was obtained between hypoxic and radioprotective effects of mexamine, given 5 min prior to irradiation, in rat bone marrow cells in vivo. An evaluation was made of both mean effectiveness of varying degrees of hypoxia and effectiveness in an individual animal on the basis of the DMF criterion.

  16. Determination of TBT in water and sediment samples along the Argentine Atlantic coast.

    Science.gov (United States)

    de Waisbaum, R G; Rodriguez, C; Nudelman, N Sbarbati

    2010-11-01

    Cases of imposex have been reported for some organisms living in areas of the Argentine Atlantic coast. Since this is one of the known effects of the anti-fouling agent tributyltin (TBT), quantitative determinations of organotins in samples of water and sediments collected from sites along the Argentine coast were carried out. Severe cases of imposex were first reported for two gastropod species living in the Mar del Plata area, and determinations of TBT in samples collected from this site gave extremely high values and showed a close correlation between the degree of imposex and TBT concentration. Recent investigations in the area have shown a significant decrease. Surveys were also conducted in sites that exhibit highly irregular coastal profiles to examine the relevance of physical environments. Alarming concentrations of TBT were determined in most of the sites where heavy boat traffic and/or marine activities occur, demonstrating the urgent need for regulations to avoid further input of TBT. Reports from other sites in South America reveal that this should be a subject of regional concern in order to avoid severe damage to the biodiversity of regional marine organisms.

  17. High-resolution stable isotope stratigraphy of the upper Cambrian and Ordovician in the Argentine Precordillera

    DEFF Research Database (Denmark)

    Sial, A.N.; Peralta, S.; Gaucher, C.;

    2013-01-01

    We report the occurrence of important carbon isotope excursions in early Paleozoic formations of the Eastern and Central Argentine Precordillera. The Steptoean positive isotope carbon excursion (SPICE) is known from North America, Kazakhstan, South China, Australia and South America, and the nega......We report the occurrence of important carbon isotope excursions in early Paleozoic formations of the Eastern and Central Argentine Precordillera. The Steptoean positive isotope carbon excursion (SPICE) is known from North America, Kazakhstan, South China, Australia and South America......, and the negative isotope carbon excursion (SNICE) has been described for the first time in South America. We report here the record of the SPICE and SNICE in a single section in the Eastern Precordillera. In the Central Precordillera, a minor middle Darriwilian positive carbon isotope excursion (MDICE) and a late...... Sandbian positive isotope carbon excursion, the GICE (~ + 3‰; C. bicornis biozone) are reported from two sections. One pre-GICE positive carbon-isotope excursion (Sandbian Sa1, N. gracilis biozone) in the Central Precordillera with a δ13C peak of ~ + 2‰ is, perhaps, equivalent to the positive Spechts Ferry...

  18. Nutrition and interference competition have interactive effects on the behavior and performance of Argentine ants.

    Science.gov (United States)

    Kay, Adam D; Zumbusch, Taylor; Heinen, Justa L; Marsh, Tom C; Holway, David A

    2010-01-01

    Food availability often influences competitive outcomes through effects on consumer growth. Although it has received less attention, food availability may also affect competition through nutritional effects on behavior. One hypothesis linking nutrition and competition in ants posits that increased access to carbohydrates favors greater investment in worker traits that underlie behavioral dominance. We tested this hypothesis by varying dietary protein:carbohydrate (P:C) ratios and levels of interspecific interference for Argentine ants (Linepithema humile), a widespread invasive species. As predicted, colonies facing interference increased patrolling more when reared on low P:C diets; this result is the first demonstration of an interactive effect of nutrition and interference on ant colonies. Several results suggest that this dietary effect on patrolling was due primarily to changes in colony size rather than worker behavior. Colonies on lower P:C diets had lower worker mortality and larger final colony sizes. Diet had little effect on per capita patrolling, and worker behavior in performance assays depended more on previous exposure to interference than on diet. Our findings indicate that dietary P:C ratios can influence Argentine ant performance in a competitive environment and suggest a mechanism by which monopolization of carbohydrate-rich resources can help invasive ants displace native ant competitors.

  19. Optimisation in a natural system: Argentine ants solve the Towers of Hanoi.

    Science.gov (United States)

    Reid, Chris R; Sumpter, David J T; Beekman, Madeleine

    2011-01-01

    Natural systems are a source of inspiration for computer algorithms designed to solve optimisation problems. Yet most 'nature-inspired' algorithms take only superficial inspiration from biology, and little is known about how real biological systems solve difficult problems. Moreover, ant algorithms, neural networks and similar methods are usually applied to static problems, whereas most biological systems have evolved to perform under dynamically changing conditions. We used the Towers of Hanoi puzzle to test whether Argentine ants can solve a potentially difficult optimisation problem. We also tested whether the ants can adapt to dynamic changes in the problem. We mapped all possible solutions to the Towers of Hanoi on a single graph and converted this into a maze for the ants to solve. We show that the ants are capable of solving the Towers of Hanoi, and are able to adapt when sections of the maze are blocked off and new sections installed. The presence of exploration pheromone increased the efficiency of the resulting network and increased the ants' ability to adapt to changing conditions. Contrary to previous studies, our study shows that mass-recruiting ant species such as the Argentine ant can forage effectively in a dynamic environment. Our results also suggest that novel optimisation algorithms can benefit from stronger biological mimicry.

  20. The cycles of Argentine wine exports / Los ciclos de las exportaciones de vino argentinas

    Directory of Open Access Journals (Sweden)

    Cerdá Juan Manuel

    2016-01-01

    Full Text Available This paper analyses the different episodes that the Argentina wine industry transited between the years 1980 to 2012, within a context of globalization of the wine-grape industry. In particular, we study the significance that some winemakers had in the process and the effect of the exchange rate and recipients of Argentine wine in the expansion of exports in recent years. The hypothesis of this article is that, from the 80 s, the winemakers observed in exports as a solution to face their most important crisis. This required a transformation of the industry to produce quality wines that could be sold on the international market. Thus, winemakers added to a century-old winemaking tradition new practices and strategies. On the other hand, over 30 years, various macroeconomic policies affect the overall industry growth, especially in exports. On balance, in this paper we propose to show that the growth of exports of Argentine wine was a sinuous and different path to the literature has been found for the “new world” exporters countries. The data was obtained from Instituto Nancional de Vitivinícultura (INV, Bolsa de Comercio de Mendoza and International Organisation of Vine and Wine (OIV as well as interviews collected on primary and secondary sources.

  1. Conflits et coopérations en territoire montagnard Mapuche (Argentine

    Directory of Open Access Journals (Sweden)

    Renaud Miniconi

    2010-03-01

    Full Text Available La question des autochtones est devenue, durant les deux dernières décennies, une préoccupation majeure dans différents pays du monde, comme en Argentine où environ 600 000 individus se reconnaissent comme tels, soit 1,5 % de sa population totale. Toutefois, ces populations sont encore trop souvent marginalisées à l’échelle de certaines régions, comme c’est le cas pour les Mapuche du Parc National Nahuel Huapi, situé dans les provinces du Rio Negro et de Neuquén. Si les textes internationaux et parfois nationaux réhabilitent certains droits humains essentiels de ces populations, les réalités locales sont plus contrastées, du fait d’intérêts souvent divergents des acteurs régionaux. Dans le contexte particulier d’une Argentine marquée par des difficultés d’accès à la propriété foncière pour une large part de la population, les parcs nationaux se révèlent être des outils pertinents, pour les populations autochtones, de recouvrement de leurs terres ancestrales, grâce en particulier aux processus de co-gestion participative mise en place sur ces territoires.

  2. Prosecuting International Crimes at National Level: Lessons from the Argentine ‘Truth-Finding Trials’

    Directory of Open Access Journals (Sweden)

    Elena Maculan

    2012-01-01

    Full Text Available Truth-finding trials (juicios por la verdad constitute a novel solution devised by the Argentine judicial system to cope with crimes committed by the past military dictatorship. This mechanism uses criminal courts as well as criminal procedure in order to investigate the truth about the dictatorship's crimes; however, the trials allow judges neither to establish criminal responsibility nor to punish the perpetrators of crimes. This limitation is due to the inability, imposed by the Full Stop and Due Obedience Laws, to prosecute the perpetrators of crimes.From the perspective of criminal law, truth-finding trials present two problematic features: firstly, their creation and regulation are set by judges, which has caused the development of many non-homogeneous local solutions and, secondly, their hybrid nature, which entails a possible subversion of conventional forms and goals in the context of the criminal trial.The paper also describes the current situation, since the Argentine impunity laws were declared unconstitutional and criminal proceedings reopened. The new framework provokes questions about the relationship between the reopened criminal trials and the truth-finding investigations, not only with regard to evidentiary issues but also with respect to the reason why the truth-finding investigations are still held.Finally, the shift from a non-punitive approach to the current full criminal accountability seems to suggest that truth-finding trials were merely a temporary solution, while the notion of the full prosecution and punishment of State crimes was never really set aside.

  3. Efficacy of Argentine propolis formulation for topical treatment of canine otitis externa

    Directory of Open Access Journals (Sweden)

    L.A Lozina

    2010-12-01

    Full Text Available The therapeutic effects of Argentine propolis ear drop formulation on canine otitis externa were evaluated. Forty-eight dogs with symptoms of otitis externa were randomly assigned to double-blinded, controlled clinical trial to evaluate the efficacy of topical formulation with propolis versus a topical placebo in the treatment of otitis externa. The propolis preparation and placebo were administrated into both external ear canals, twice daily for 14 days. Throughout the study, clinical examination and microbiological analysis of dogs ear exudates were made. The most frequent microorganisms isolated in culture media were: Malassezia pachydermatis (54.2%, Staphylococcus aureus (43.8%, coagulase-negative Staphylococcus (25.0%, Pseudomonas aeruginosa (20.8%, Candida albicans (18.8%, Proteus mirabilis (16.7%, Streptococcus spp. (16.7%, Enteroccocus faecalis (12.5%, Escherichia coli (12.5%, Staphylococcus intermedius (6.3%, Klebsiella spp. (4.2%, andCandida glabrata (2.1%. Whereas the control group did not recover from the infectious ear disease, the propolis preparation exhibited antimicrobial activity against most of the microorganisms isolated from samples of the treated group. In addition, no propolis-adverse effects were observed. This allowed propolis-treated patients to show a significant improvement of the clinical parameters. Thus, this new Argentine propolis ear drop formulation may be used for topical treatment of otitis externa in dogs.

  4. Analysis of genetic diversity and population structure in Argentine and Bolivian Creole cattle using five loci related to milk production

    Directory of Open Access Journals (Sweden)

    Lirón J.P.

    2002-01-01

    Full Text Available Data from five protein-coding loci related to dairy production were used to study the genetic diversity and population structure of Argentine and Bolivian Creole cattle breeds. Genomic DNA was extracted from blood samples of six Creole cattle breeds: Argentine (n = 230, Patagonian (n = 25; "Saavedreño" (n = 140, "Chaqueño Boliviano" (n = 30, "Yacumeño" (n = 27, and "Chusco" (n = 11. kappa-casein, beta-lactoglobulin, growth hormone and prolactin were measured by PCR-RFLP, while alphaS1-casein was typed by PCR-ASO. The results are discussed, focusing on: historical origin, recent differentiation and selection events, Zebu gene introgression, and population structure. This work shows that: (i For the studied genes, the observed gene frequency profiles of Argentine and Bolivian Creole cattle breeds were close to the data reported for Iberian breeds and for other South-American Creole cattle breeds which are historically related; (ii although Zebu gene introgression has been reported at the studied loci, these breeds seem to be far from the Zebu gene frequency profiles; and (iii the Argentine and Bolivian Creole cattle showed significant levels of subdivision, but each population has maintained its degree of genetic variability.

  5. Indian Vacuum Society: The Indian Vacuum Society

    Science.gov (United States)

    Saha, T. K.

    2008-03-01

    The Indian Vacuum Society (IVS) was established in 1970. It has over 800 members including many from Industry and R & D Institutions spread throughout India. The society has an active chapter at Kolkata. The society was formed with the main aim to promote, encourage and develop the growth of Vacuum Science, Techniques and Applications in India. In order to achieve this aim it has conducted a number of short term courses at graduate and technician levels on vacuum science and technology on topics ranging from low vacuum to ultrahigh vacuum So far it has conducted 39 such courses at different parts of the country and imparted training to more than 1200 persons in the field. Some of these courses were in-plant training courses conducted on the premises of the establishment and designed to take care of the special needs of the establishment. IVS also regularly conducts national and international seminars and symposia on vacuum science and technology with special emphasis on some theme related to applications of vacuum. A large number of delegates from all over India take part in the deliberations of such seminars and symposia and present their work. IVS also arranges technical visits to different industries and research institutes. The society also helped in the UNESCO sponsored post-graduate level courses in vacuum science, technology and applications conducted by Mumbai University. The society has also designed a certificate and diploma course for graduate level students studying vacuum science and technology and has submitted a syllabus to the academic council of the University of Mumbai for their approval, we hope that some colleges affiliated to the university will start this course from the coming academic year. IVS extended its support in standardizing many of the vacuum instruments and played a vital role in helping to set up a Regional Testing Centre along with BARC. As part of the development of vacuum education, the society arranges the participation of

  6. L’identité argentine ou la construction d’un mythe littéraire entre Europe et Amérique

    Directory of Open Access Journals (Sweden)

    Lionel Souquet

    2002-06-01

    Full Text Available Cet article propose une approche de quelques archétypes qui, jusqu’en Europe, ont contribué à construire une image un peu théâtrale et parfois floue de l’Argentin. Une image littéraire avant tout, mais paradoxalement, souvent proche de la réalité socioculturelle car l’identité du romancier latino-américain est souvent liée à un profond engagement qui se traduit par la description et l’analyse – philosophique, politique, historique, sociologique… - du réel. C’est en étudiant le portrait que les intellectuels du XIXème siècle dressent du gaucho, personnage emblématiquement fort mais aussi victime de toutes les manipulations idéologiques, que l’on voit comment l’identité argentine a été forgée autour d’une dichotomie civilisation-barbarie dont le mythe semble encore vivant dans l’Argentine d’aujourd’hui. L’article aborde ensuite le thème de l’immigration, facteur essentiel de la mutation de cette société et de son entrée dans le XXème siècle. Le portrait de l’Argentin de classe moyenne (groupe social qui distingue particulièrement l’Argentine du reste de l’Amérique latine est ensuite dessiné plus en détail, mais à travers le miroir à la fois déformant et grossissant de l’écrivain Manuel Puig. Il est indéniable que l’imaginaire modèle la réalité. La littérature est certes un miroir déformant et contradictoire de la réalité mais elle appartient aussi à cette réalité.This paper focuses on some of the archetypes which have contributed to the construction of the rather theatrical and blurred picture of the Argentinian – including in Europe. Paradoxically enough, this literary image is not so far removed from the socio-cultural reality as the identity of the Latin-American novelist is often defined by his or her engagement with reality through (philosophical, political, historical and sociological description and analysis. A study of the portrayal by 19th

  7. Cellular Internalization of Fibroblast Growth Factor-12 Exerts Radioprotective Effects on Intestinal Radiation Damage Independently of FGFR Signaling

    Energy Technology Data Exchange (ETDEWEB)

    Nakayama, Fumiaki, E-mail: f_naka@nirs.go.jp [Advanced Radiation Biology Research Program, Research Center for Charged Particle Therapy, Chiba (Japan); Umeda, Sachiko [Advanced Radiation Biology Research Program, Research Center for Charged Particle Therapy, Chiba (Japan); Yasuda, Takeshi [Radiation Emergency Medicine Research Program, Research Center for Radiation Emergency Medicine, National Institute of Radiological Sciences, Chiba (Japan); Fujita, Mayumi [Advanced Radiation Biology Research Program, Research Center for Charged Particle Therapy, Chiba (Japan); Asada, Masahiro [Signaling Molecules Research Group, Biomedical Research Institute, National Institute of Advanced Industrial Science and Technology, Tsukuba (Japan); Meineke, Viktor [Bundeswehr Institute of Radiobiology affiliated to the University of Ulm, Munich (Germany); Imamura, Toru [Signaling Molecules Research Group, Biomedical Research Institute, National Institute of Advanced Industrial Science and Technology, Tsukuba (Japan); Imai, Takashi [Advanced Radiation Biology Research Program, Research Center for Charged Particle Therapy, Chiba (Japan)

    2014-02-01

    Purpose: Several fibroblast growth factors (FGFs) were shown to inhibit radiation-induced tissue damage through FGF receptor (FGFR) signaling; however, this signaling was also found to be involved in the pathogenesis of several malignant tumors. In contrast, FGF12 cannot activate any FGFRs. Instead, FGF12 can be internalized readily into cells using 2 cell-penetrating peptide domains (CPP-M, CPP-C). Therefore, this study focused on clarifying the role of FGF12 internalization in protection against radiation-induced intestinal injury. Methods and Materials: Each FGF or peptide was administered intraperitoneally to BALB/c mice in the absence of heparin 24 hours before or after total body irradiation with γ rays at 9 to 12 Gy. Several radioprotective effects were examined in the jejunum. Results: Administration of FGF12 after radiation exposure was as effective as pretreatment in significantly promoting intestinal regeneration, proliferation of crypt cells, and epithelial differentiation. Two domains, comprising amino acid residues 80 to 109 and 140 to 169 of FGF12B, were identified as being responsible for the radioprotective activity, so that deletion of both domains from FGF12B resulted in a reduction in activity. Interestingly, these regions included the CPP-M and CPP-C domains, respectively; however, CPP-C by itself did not show an antiapoptotic effect. In addition, FGF1, prototypic FGF, possesses a domain corresponding to CPP-M, whereas it lacks CPP-C, so the fusion of FGF1 with CPP-C (FGF1/CPP-C) enhanced cellular internalization and increased radioprotective activity. However, FGF1/CPP-C reduced in vitro mitogenic activity through FGFRs compared with FGF1, implying that FGFR signaling might not be essential for promoting the radioprotective effect of FGF1/CPP-C. In addition, internalized FGF12 suppressed the activation of p38α after irradiation, resulting in reduced radiation-induced apoptosis. Conclusions: These findings indicate that FGF12 can protect the

  8. Podophyllum hexandrum Offers Radioprotection by Modulating Free Radical Flux: Role of Aryl-Tetralin Lignans

    Directory of Open Access Journals (Sweden)

    Raman Chawla

    2006-01-01

    Full Text Available We have evaluated the effect of variation in aryl-tetralin lignans on the radioprotective properties of Podophyllum hexandrum. Two fractionated fractions of P. hexandrum [methanolic (S1 and chloroform fractions (S2], with varying aryl-tetralin lignan content were utilized for the present study. The peroxyl ion scavenging potentials of S1 and S2 were found to be comparable [i.e. 45.88% (S1 and 41% (S2] after a 48 h interval in a time-dependent study, whereas in a 2 h study, S2 exhibited significant (P < 0.05 antioxidant activity in different metal ion + flux states. In the aqueous phase, S2 exhibited non-site-specific reactive oxygen species scavenging activity, i.e. 73.12% inhibition at 500 μg ml−1. S1 exhibited 58.40 ± 0.8% inhibition (at 0.025 μg ml−1 of the formation of reactive nitrite radicals, comparable to S2 (52.45 ± 0.825%, and also showed 45.01% site-specific activity (1000 μg ml−1, along with significant (P < 0.05 electron donation potential (50–2000 μg ml−1 compared to S2. Such activities of S1 could be attributed to the significantly (P < 0.05 higher levels of podophyllotoxin β-d-glucopyranoside (16.5 times and demethyl podophyllotoxin glucoside (2.9 times compared with S2. Together, these findings clearly prove that aryl-tetralin lignan content influences the radiation protective potential of the Podophyllum fractions to a great extent.

  9. Radioprotective role in lung of the flaxseed lignan complex enriched in the phenolic secoisolariciresinol diglucoside (SDG).

    Science.gov (United States)

    Christofidou-Solomidou, Melpo; Tyagi, Sonia; Pietrofesa, Ralph; Dukes, Floyd; Arguiri, Evguenia; Turowski, Jason; Grieshaber, Philip A; Solomides, Charalambos C; Cengel, Keith A

    2012-12-01

    While dietary wholegrain Flaxseed (FS) has potent anti-inflammatory, anti-fibrotic and antioxidant properties in murine models of acute and chronic lung injury, the main bioactive ingredient that contributes to these protective effects remains unknown. This study evaluated the lignan complex of FS (FLC) enriched in secoisolariciresinol diglucoside with respect to lung radioprotective and tumor radiosensitizing efficacy using a mouse model of thoracic radiation-induced pneumonopathy. C57/Bl6 mice were fed 0% FS, 10% FS, 10% FLC or 20% FLC for 3 weeks, then irradiated with a single fraction (13.5 Gy) of X-ray radiation treatment (XRT). Mouse survival was monitored for 4 months after irradiation and inflammatory lung parameters were evaluated in bronchoalveolar lavage (BAL) fluid. Gene and protein levels of protective antioxidant and phase II enzymes were evaluated in lung tissue using qPCR and protein levels were verified by immunoblotting. Prolonged administration of the FLC diet was well tolerated and was not associated with any toxicity. Importantly, comparable to the whole grain 10% FS diet, irradiated mice fed 10% and 20% FLC diets displayed improved survival. Improved hemodynamic measurements were also recorded in irradiated mice fed 10% FS or 10% FLC diet compared to irradiated 0% FS fed mice. Flaxseed lignan complex diet also attenuated polymorphonuclear infiltration and overall lung inflammation to levels comparable to those in nonirradiated mice. Flaxseed lignan complex, similarly to FS, up-regulated gene expression as well as protein levels of protective antioxidant enzymes such as heme oxygenase-1 (HO-1) and NAD(P)H quinone oxidoreductase 1 (NQO1). Dietary FLC induced radiosensitizing effects in our murine model of metastatic lung cancer. Importantly, protection of normal tissue does not thwart tumor cell death by radiation treatment. The dietary lignan complex of FS, mainly consisting of the phenolic secoisolariciresinol, is protective against radiation

  10. Radioprotective effects of flavonoids against to chromosomal damage: relation between the structure and activity

    Energy Technology Data Exchange (ETDEWEB)

    Alcaraz, M.; Acevedo, C.; Benavente-Garcia, O.; Castillo, J.; Vicente, V.; Canteras, M.

    2004-07-01

    Protective effects of grape (Vitis vinifera) seed (GSE), Citrus spp. fruits (CE) and olive Olea europaea L) leaf (OL) extracts, the flavonoids diosmin and rutin, widely used as pharmaceuticals, and diemthyl sulphoxide (DMSO) against chromosomal damage induced by X-rays and g radiation were determined by using two different micronucleus test for anti genotoxic activity. The quantitative distribution of several flavones-3-ols was determined using HPLC in a grape (Vitis vinifera), seed extract (GSE) and Olea european (OL) of four cultivars grown in the region of Murcia. Polymer>C4 units made up the largest group of procyanidins in the GSE (90,92%, expressed as HPLC% area). The antioxidant activity of GSE and other reference compounds was investigated by measuring theirs ability to scavenge the ABTS+ radical cation (TEAC). The most effective compounds were in order: GSE >rutin>(+)-catechin>OL>diosmina>ascorbic acid. The radioprotective effects of GSE and other reference compounds were determined by using the micronucleus test for anticlastogenic activity, any reduction of the frequency of micronucleated polychromatic erythrocytes (mnOCEs) being evaluated in the bone marrow of mouse exposed to X rays; and evaluating the reduction in the frequency of micronuclei in citokinesis-blocked cells of human lymphocytes exposed to g-rays. The most effective compounds were, in order: GSE>rutin>dimetylsufoxide (DMSO)>ascorbic acid>OL>6-n-propyl-2-thiouracil-6c (PTU)>disomin. The higher ABTS scavenging capacity and antigenotoxic activity of GSE can be explained, structurally, by the high number of conjugated structures between the catechol groups in the B-rings ant the 3-OH free groups of the polymeric polyphenolic skeleton and, in addition, by the stability of the aroxyl flavonoide radical generated in the above processes. (Author)

  11. Radioprotective role of H{sub 2}S/CSE pathway in Chang liver cells

    Energy Technology Data Exchange (ETDEWEB)

    Pan Yan; Ye Shuang; Yuan Dexiao; Zhang Jianghong; Bai Yang [Institute of Radiation Medicine, Fudan University, No. 2094 Xie-Tu Road, Shanghai 200032 (China); Shao Chunlin, E-mail: clshao@shmu.edu.cn [Institute of Radiation Medicine, Fudan University, No. 2094 Xie-Tu Road, Shanghai 200032 (China); Division of Nuclear Medicine, School of Medical Sciences, Anhui Medical University, Hefei (China)

    2012-10-15

    Radiation-induced liver cell damage may be life-threatening. Here, we investigated whether hydrogen sulfide (H{sub 2}S)/cystathionine {gamma}-lyase (CSE) pathway could serve the protective role toward radiation in normal human liver cells. Our data showed that pretreatment of cells with H{sub 2}S donor, sodium hydrosulfide (NaHS) significantly attenuated radiation induced micronuclei formation and improved cell viability. However, the use of DL-propargylglycine (PPG), a potent inhibitor of CSE, markedly enhanced the cell-killing effect induced by radiation. Exposure of cells to 2 Gy {gamma}-radiation led to significant increases of the endogenous H{sub 2}S content. The mRNA and protein expressions of CSE also increased after radiation in a time-dependent manner, while the expression of cystathionine {beta}-synthase (CBS), another endogenous H{sub 2}S synthetase, did not change significantly. Notably, radiation induced production of reactive oxygen species (ROS) was significantly reversed by the pretreatment of NaHS, while blockage of CSE activity resulted in an enhanced ROS production in irradiated cells. Moreover, NaHS markedly suppressed radiation-induced phosphorylation of P53, decrease of Bcl-2/Bax, and activity of nuclear factor kappaB (NF-{kappa}B). In conclusion, our finding demonstrates that H{sub 2}S/CSE pathway plays a radioprotection role by inhibiting radiation-induced ROS production, P53 phosphorylation, NF-{kappa}B activation and decrease of Bcl-2/Bax, indicating that modulation of H{sub 2}S may be a novel protection strategy for liver radiation injury in radiotherapy.

  12. Binding of the radioprotective agent cysteamine with the phospholipidic membrane headgroup-interface region

    Energy Technology Data Exchange (ETDEWEB)

    Berleur, F.; Roman, V.; Jaskierowicz, D.; Fatome, M.; Leterrier, F.; Ter-Minassian-Saraga, L.; Madelmont, G.

    1985-09-01

    The interaction of the aminothiol radioprotector cysteamine (..beta..-mercaptoethylamine)(CYST) with dipalmitoylphosphatidylcholine (DPPC) artificial membranes has been studied by differential scanning calorimetry (DSC), turbidimetry and spin labeling. This hydrophilic molecule displays a biphasic, concentration-dependent binding to the phospholipidic head groups at neutral pH. In the CYST/DPPC molar ratio 1:160-1:2 (mole/mole) an increasing ordering effect is observed. At high concentrations (over 3:1 ratio), this ordering effect decreases. With the symmetric disulfide dimer cystamine, the biphasic effect is not shown and the membrane rigidity decrease is obtained only at concentration ratio higher than 1:1. The charge repartition of the cysteamine molecule has been shown to be disymmetric, +0.52 e on the NH/sub 3/ group and +0.19 e on the SH extremity, whereas the cystamine molecule is electrostatically symmetrical. These properties could be related to their membrane effects. With cysteamine, at a low concentration, an electrostatic bridging between the negatively charged phosphate groups of the polar heads induces the increase in membrane stability: the molecules behave like a divalent cation. At high concentration a displacement of the slightly charged SH extremity by the amine disrupts the bridges and induces the decrease in rigidity: the drug behaves like a monovalent cation. Due to its symmetric charge and its double length, such an effect is not observed with cystamine. This study could bring further information about the interactions between cysteamine and polyelectrolytic structures (ADN for example) and about the radioprotective properties of this drug.

  13. Civil Society and Governance

    DEFF Research Database (Denmark)

    Hulgård, Lars

    An illustration of how important the relationship is between civil society anbd governance. A short historic journey with four snapshots of times and situations that have provided interesting evidence about the connection between civil society and governance. My goal for the short historic journey...... is to make clear and hopefully even verify that providing knowledge about the impact of civil society and citizens’ participation on governance is one of the most urgent research tasks in the current period of time....

  14. The Society for Scandinavian Art

    DEFF Research Database (Denmark)

    Grand, Karina Lykke

    2016-01-01

    The Society for Nordic Art & the Scandinavian Society [Selskabet for Nordisk Kunst & Skandinavisk Selskab]......The Society for Nordic Art & the Scandinavian Society [Selskabet for Nordisk Kunst & Skandinavisk Selskab]...

  15. Abstract bodies, concrete risks: clinical devices and the health of ova donors in Argentine reproductive medicine

    Directory of Open Access Journals (Sweden)

    Lucía Ariza

    2016-10-01

    Full Text Available Using a methodological perspective grounded in science and technology studies, this article analyzes two sociotechnical devices used in Argentine reproductive medicine (biostatistical measures and donation registries with the aim of controlling both the so-called “genetic risk” arising from the use of donated ova as well as the health risks to female donors. By examining how the deployment of monitoring criteria disregards the specificity of ova donation, the article suggests that it is not the absence of control measures and clinical criteria that produces an inadequate monitoring of such risks, but rather the concrete ways in which such measures are implemented that results in potential harms to the health of female donors.

  16. The widespread collapse of an invasive species: Argentine ants (Linepithema humile) in New Zealand.

    Science.gov (United States)

    Cooling, Meghan; Hartley, Stephen; Sim, Dalice A; Lester, Philip J

    2012-06-23

    Synergies between invasive species and climate change are widely considered to be a major biodiversity threat. However, invasive species are also hypothesized to be susceptible to population collapse, as we demonstrate for a globally important invasive species in New Zealand. We observed Argentine ant populations to have collapsed in 40 per cent of surveyed sites. Populations had a mean survival time of 14.1 years (95% CI = 12.9-15.3 years). Resident ant communities had recovered or partly recovered after their collapse. Our models suggest that climate change will delay colony collapse, as increasing temperature and decreasing rainfall significantly increased their longevity, but only by a few years. Economic and environmental costs of invasive species may be small if populations collapse on their own accord.

  17. Loss of Wolbachia infection during colonisation in the invasive Argentine ant Linepithema humile

    DEFF Research Database (Denmark)

    Reuter, M.; Pedersen, Jes Søe; Keller, L.

    2005-01-01

    the phylogenies of Wolbachia and its arthropod hosts indicate that infection is frequently lost, but the causes of symbiont extinction have so far remained elusive. Here, we report data showing that colonisation of new habitats is a possible mechanism leading to the loss of infection. The presence and prevalence...... of Wolbachia were studied in three native and eight introduced populations of the Argentine ant Linepithema humile. The screening shows that the symbiont is common in the three native L. humile populations analysed. In contrast, Wolbachia was detected in only one of the introduced populations. The loss...... of infection associated with colonisation of new habitats may result from drift (founder effect) or altered selection pressures in the new habitat. Furthermore, a molecular phylogeny based on sequences of the Wolbachia wsp gene indicates that L. humile has been infected by a single strain. Horizontal...

  18. Moessbauer study of the Fe mineralogy in two different Argentine soils

    Energy Technology Data Exchange (ETDEWEB)

    Mijovilovich, A. [Departamento de Fisica, Comision Nacional de Energia Atomica (Argentina); Morras, H. [Instituto de Suelos, INTA-CIRN (Argentina); Causevic, H. [Universidad de Buenos Aires, Ciudad Universitaria, Facultad de Ciencias Exactas y Naturales (Argentina); Saragovi, C. [Departamento de Fisica, Comision Nacional de Energia Atomica (Argentina)

    1999-11-15

    Two Argentine soils featuring different characteristics and compositions (mollisols and ultisols) have been studied by Moessbauer spectroscopy and X-ray diffraction. The first type has a weakly developed profile with a solum thickness of 40 cm; the Fe oxyhydroxides are present in low concentrations in mixtures with other slightly weathered minerals (e.g., quartz, feldspars, 2 : 1 phyllosilicates, etc.). The second one is a typic kandihumult, which is a highly weathered red coloured, deep soil. The Fe oxyhydroxides are abundant, mixed mainly with kaolinite clay minerals. Analyses of iron mineralogy show hematite and goethite in both soils. Their ratio is low in the first case and high in the last case. Magnetite-maghemite are also present in both situations, but in the mollisol their content is much lower than in the ultisol. The mineralogy found is related to the different lithological characteristics and processes of pedological evolution on both soils.

  19. Copi et Puig, ovnis du théâtre argentin ?

    OpenAIRE

    Souquet, Lionel

    2015-01-01

    C’est en 1968 que Copi (Raúl Damonte Botana, 1939-1987) publie sa première pièce, La journée d’une rêveuse puis, un an plus tard, la très iconoclaste Eva Peron. Par son milieu familial, Copi a baigné dès l’enfance dans la vie théâtrale internationale et a été fortement influencé par sa grand-mère, la dramaturge anarcho-féministe Salvadora Medina Onrubia de Botana. Mais, vivant en exil avec sa famille, Copi est coupé de la réalité de la scène argentine et il écrit d’ailleurs ses premières pièc...

  20. Screening of plants used in Argentine folk medicine for antimicrobial activity.

    Science.gov (United States)

    Anesini, C; Perez, C

    1993-06-01

    Screening of 132 extracts from Argentine folk-medicinal plants for antimicrobial activity has been conducted using a penicillin G resistant strain of Staphylococcus aureus, Escherichia coli and Aspergillus niger as test microorganisms. Cephazolin, ampicillin and miconazole were used as standard antibiotics and concentration-response curves were obtained using the agar-well diffusion method. Boiling water extracts of plant materials were tested and 12 species were active against Staphylococcus aureus, whereas 10 were effective against Escherichia coli and 4 against Aspergillus niger. Tabebuia impetiginosa bark, Achyrocline sp. aerials parts, Larrea divaricata leaves, Rosa borboniana flowers, Punica granatum fruit pericarp, Psidium guineense fruit pericarp, Lithrea ternifolia leaves and Allium sativum bulbs produced some of the more active extracts.

  1. [Candid#1 vaccine against Argentine hemorrhagic fever produced in Argentina. Immunogenicity and safety].

    Science.gov (United States)

    Enria, Delia A; Ambrosio, Ana M; Briggiler, Ana M; Feuillade, María Rosa; Crivelli, Eleonora

    2010-01-01

    A clinical study in 946 human volunteers was done to compare Candid #1 vaccine manufactured in Argentina with the vaccine produced in USA that had been previously used. The efficacy was evaluated using immunogenicity measured by the detection of neutralizing antibodies as a subrogate marker. Safety was evaluated comparing the rate of adverse events. Both vaccines showed a comparable rate of seroconversion, slightly higher than the efficacy estimated from previous studies (95.5%). There were no severe adverse events related to the vaccines. The general events considered related to the vaccines were not clinically relevant and disappeared either spontaneously or with symptomatic treatment. Similar rates of adverse events (29.9% for the Argentine vaccine and 35.0% for the USA vaccine) were found for both vaccines. These included: headache, weakness, myalgias, mild low blood cell (ANMAT).

  2. RECENT TRANSFORMATIONS IN THE ARGENTINE OIL INDUSTRY: THE YPF CASE, 1989-2012

    Directory of Open Access Journals (Sweden)

    Esteban Serrani

    2013-06-01

    Full Text Available The objective of the paper is to analyze the path of the state oil company YPF, from privatization to its expropriation (1989-2012. In this process, it has a special emphasis on the identification and analysis of national peculiarities that explain why in the ‘90s YPF, one of the nation’s premier companies in history, was fully privatized (counter to the regional experience in Mexico, Venezuela and Brazil; and how, just twenty years later, the same company was again in state control, with an expropriation which was widely popular and parliamentary support. It also reviews the main consequences of deregulation and the opening in the Argentine oil sector, especially in the performance of --- since acquired all shares of YPF in 1999, to explain this path.

  3. Ethical and Civic Education. Difficulties during the Curricular Reform in Argentine Patagonia

    Directory of Open Access Journals (Sweden)

    Isabelino Siede

    2015-04-01

    Full Text Available DOI: http://dx.doi.org/10.17227/01234870.41folios51.68 What type of ethical and civic education is effectively provided at school? This article analyzes the curricular prescriptions of Ethical and Citizenship Education in primary schools of the Argentine Patagonia, as well as its relations and contradictions with the school practices of moral education It inquires the process of definition of the area in the context of the Educational Reform in the 90s. Also, it pursuits to remake the way it was incorporated in the provincial curriculum design. Throughout focus groups and interviews to teachers from different public and private schools of three towns from de north of Santa Cruz, we analyze the descriptions and expectative of the teachers about their teaching practice in the moral area, as well as the possible causes of the differences and the contradictions between the policies of the curricular statement and educational proposals offered at school.

  4. Development and validation of an Argentine set of facial expressions of emotion.

    Science.gov (United States)

    Vaiman, Marcelo; Wagner, Mónica Anna; Caicedo, Estefanía; Pereno, Germán Leandro

    2017-02-01

    Pictures of facial expressions of emotion are used in a wide range of experiments. The last decade has seen an increase in the number of studies presenting local sets of emotion stimuli. However, only a few existing sets contain pictures of Latin Americans, despite the growing attention emotion research is receiving in this region. Here we present the development and validation of the Universidad Nacional de Cordoba, Expresiones de Emociones Faciales (UNCEEF), a Facial Action Coding System (FACS)-verified set of pictures of Argentineans expressing the six basic emotions, plus neutral expressions. FACS scores, recognition rates, Hu scores, and discrimination indices are reported. Evidence of convergent validity was obtained using the Pictures of Facial Affect in an Argentine sample. However, recognition accuracy was greater for UNCEEF. The importance of local sets of emotion pictures is discussed.

  5. Adjective checklist to assess the big five personality factors in the Argentine population.

    Science.gov (United States)

    Ledesma, Rubén D; Sánchez, Roberto; Díaz-Lázaro, Carlos M

    2011-01-01

    The aim of this work was to develop an adjective checklist to assess the Big Five personality factors in the Argentine population. The new instrument was administered to pilot (n= 112), validation (n= 372), and replication (n= 309) samples. The final version of the checklist included 67 adjectives encompassing its 5 dimensions. Factor analysis results were consistent with the Five-factor model. Internal consistency of scales was very good and convergent correlations with the Big Five Inventory (BFI; John, Donahue, & Kentle, 1991) were substantial. Face validity, as evaluated by 2 independent raters, was good. Preliminary evidence of validity for the checklist is presented. Finally, the Adjective Checklist for Personality Assessment and BFI are compared, taking into consideration their psychometric properties in our cultural context. Study limitations and future research are discussed.

  6. Organochlorinated pesticides in the Argentine Antarctic sector and Atlantic coastline waters.

    Science.gov (United States)

    García Fernández, J C; Casabella, A N; Marzi, A A; Astolfi, E; Roses, O; Donnewald, H; Villamil, E

    1979-01-01

    The presence of organochlorinated pesticides in water samples drawn in the Argentine Antarctic Sector and Atlantic coastline has been proved. In general, these samples showed quantities that varied between a few hundredths of a ppmm to slightly more than 1 ppmm, although in some cases and for certain pesticides, depending on the locations, the levels found were definitely higher. With the exception of Dieldrin, which appeared in only one sample/in what would seem to be its course few hundredths of a ppm, to slightly more than 1 ppmm, although in some cases and for certain pesticides found were the same as those reported in previous investigations. The isolated cases of high pesticide contents in water samples drawn at wharves and of snow in the vicinity of Almirante Brown Base show up clearly the influence of human activity on the contamination of the environment.

  7. Therapeutic Argentine tango dancing for people living with Parkinson’s disease: a feasibility study

    Directory of Open Access Journals (Sweden)

    Laura M Blandy

    2015-05-01

    Full Text Available Background: Individuals living with Parkinson’s disease (PD can experience a range of movement disorders. Therapeutic dance is enjoyable and thought to improve mobility, balance and well being in some people with PD. The primary objective of this study was to evaluate the feasibility and safety of a 4 week Argentine tango dance program for people with PD. Methods: Six community dwelling individuals with mild-moderate PD were recruited from Parkinson’s support groups, movement disorder clinics and the Parkinson’s disease Association in Australia. To minimise falls risk, participants were required to be less than 75 years of age and physically independent (Hoehn and Yahr stages I-III. They were also required to speak English. Participants attended a 1 hour dance class at a dance studio twice per week for 4 weeks. A professional dance instructor led and choreographed the classes. Physiotherapists were present to assist participants during the class and served as dance partners as necessary. The primary outcome was feasibility which was determined by measures of recruitment, adherence, attrition, safety (falls, near misses and adverse events and resource requirements. Secondary measures included the Beck Depression Inventory and the Euroqol-5D, administered at baseline and post intervention. Therapy outcomes pre and post-intervention were analysed descriptively as medians and inter-quartile ranges and using Wilcoxon matched pair signed-rank tests.Results: The Argentine tango dance intervention was shown to be safe, with no adverse events. Adherence to the dance program was 89%. Depression scores improved after intervention (p=0.04. Some challenges were associated with the need to quickly recruitment participants and supplying physiotherapists to act as dance partners. Conclusion: The program was shown to be feasible and safe for people with mild to moderately severe PD.

  8. Culture et propagande franquiste dans l’Argentine péroniste

    Directory of Open Access Journals (Sweden)

    Laurent Bonardi

    2004-09-01

    Full Text Available La fin de la Seconde Guerre Mondiale et la condamnation internationale de l’Espagne plongent le régime franquiste dans une situation très délicate. Cependant, le gouvernement argentin du général Peron devient un véritable gilet de sauvetage pour la dictature espagnole. Le régime du Caudillo profite de ce contexte pour développer une propagande très intense dans le Rio de la Plata. Pour mener à bien les différentes actions de propagande, les représentants espagnols en Argentine devront lutter contre les activités antifranquistes des exilés.La conclusión de la Segunda Guerra Mundial y la condena internacional de España sumen al régimen franquista en una muy delicada coyuntura. Sin embargo, el gobierno argentino del general Perón se convierte en un auténtico chaleco salvavidas para la dictadura española. El régimen del Caudillo aprovecha este contexto para desarrollar una intensa propaganda en el Río de la Plata. Para llevar a cabo las distintas acciones propagandísticas, los representantes españoles en Argentina tendrán que luchar contra las actividades antifranquistas de los exiliados.The end of World War II and the international condemnation of Spain put Franco’s regime in a very delicate situation. However, the Argentinian government of the general Peron appeared as a “life jacket” for the Spanish dictatorship. The government of the Caudillo used this context to develop a very intense propaganda in the Rio de la Plata. Still, to conclude their various propagandist actions, the Spanish representatives in Argentina had to fight against the activities of antifranquist people in exile.

  9. Consequences of the Argentine ant, Linepithema humile (Mayr), invasion on pollination of Euphorbia characias (L.) (Euphorbiaceae)

    Science.gov (United States)

    Blancafort, Xavier; Gómez, Crisanto

    2005-07-01

    We have studied the influence of the Argentine ant, Linepithema humile, on the pollination of Euphorbia characias, a deciduous insect-pollinated shrub. The observations were made in two adjacent areas (invaded and non-invaded by L. humile) in a Mediterranean cork-oak forest. In the invaded area, L. humile has replaced most of the native ants that climb up this plant's inflorescences. Five native ant species were detected in the non-invaded areas and only one in the invaded area. The number of visitors to infested inflorescences (1.54 ± 1.86 visitors/10 min observation) was lower than in non-infested inflorescences in the invaded area (3.74 ± 4.19 visitors/10'), and in the non-invaded areas (4.16 ± 5.00 visits/10'). For several species of flower-visiting insects, no differences were detected between the time spent in the flowers and the number of flowers visited in the two areas, except for Eristalis tenax, a dipteran which visited more flowers (15.2 ± 11.1 flowers visited/10') and spent more time (9.4 ± 5.8 sec) in the non-invaded area than in the invaded area (7.8 ± 8.2 flowers visited/10' and 5.3 ± 2.1 sec, respectively). The relative representation of insect orders in the two areas was not different. A significant reduction in fruit-set and seed-set was detected in the invaded area. These results suggest that the Argentine ant may greatly affect the reproductive success of components of the Mediterranean flora.

  10. Can the Argentine ant ( Linepithema humile Mayr) replace native ants in myrmecochory?

    Science.gov (United States)

    Gómez, Crisanto; Oliveras, Jordi

    2003-04-01

    We analyse the influence of the Argentine ant ( Linepithema humile Mayr) on the seed dispersal process of the myrmecochorous plants Euphorbia characias, E. biumbellata, Genista linifolia, G. triflora, G. monspessulana and Sarothamnus arboreus. The observations were made in two study plots of Mediterranean cork-oak secondary forest (invaded and non-invaded by L. humile). The presence of L. humile implies the displacement of all native ant species that disperse seeds. Seed transports in the non-invaded zone were carried out by eight ant species. In the invaded zone, L. humile workers removed and transported seeds to the nest. In vertebrate exclusion trials, we observed the same level of seed removal in the invaded and non-invaded zones. Two findings could explain this result. Although mean time to seed localization was higher for native ants (431.7 s) than that for L. humile (150.5 s), the mean proportion of seeds transported after being detected was higher (50.1%) in non-invaded than in invaded (16.8%) zones. The proportion of seeds removed and transported into an ant nest after an ant-seed interaction had dramatically reduced from non-invaded (41.9%) to invaded (7.4%) zones. The levels of seed dispersal by ants found prior to invasion are unlikely to be maintained in invaded zones. However, total replacement of seed dispersal function is possible if contact iteration finally offers similar levels or quantities of seeds reaching the nests. The results obtained confirm that the Argentine ant invasion may affect myrmecochory dramatically in the Mediterranean biome.

  11. Global-scale analyses of chemical ecology and population genetics in the invasive Argentine ant.

    Science.gov (United States)

    Brandt, M; Van Wilgenburg, E; Tsutsui, N D

    2009-03-01

    Ants are some of the most abundant and ecologically successful terrestrial organisms, and invasive ants rank among the most damaging invasive species. The Argentine ant is a particularly well-studied invader, in part because of the extreme social structure of introduced populations, known as unicoloniality. Unicolonial ants form geographically vast supercolonies, within which territorial behaviour and intraspecific aggression are absent. Because the extreme social structure of introduced populations arises from the widespread acceptance of conspecifics, understanding how this colonymate recognition occurs is key to explaining their success as invaders. Here, we present analyses of Argentine ant recognition cues (cuticular hydrocarbons) and population genetic characteristics from 25 sites across four continents and the Hawaiian Islands. By examining both hydrocarbon profiles and microsatellite genotypes in the same individual ants, we show that native and introduced populations differ in several respects. Both individual workers and groups of nestmates in the introduced range possess less diverse chemical profiles than ants in the native range. As previous studies have reported, we also find that introduced populations possess much lower levels of genetic diversity than populations in the native range. Interestingly, the largest supercolonies on several continents are strikingly similar to each other, suggesting that they arose from a shared introduction pathway. This high similarity suggests that these geographically far-flung ants may still recognize and accept each other as colonymates, thus representing distant nodes of a single, widely distributed supercolony. These findings shed light on the behaviour and sociality of these unicolonial invaders, and pose new questions about the history and origins of introduced populations.

  12. Marine fronts are important fishing areas for demersal species at the Argentine Sea (Southwest Atlantic Ocean)

    Science.gov (United States)

    Alemany, Daniela; Acha, Eduardo M.; Iribarne, Oscar O.

    2014-03-01

    The high primary and secondary production associated with frontal systems attract a diversity of organisms due to high prey availability; this is why a strong relationship between fronts and pelagic fisheries has been shown worldwide. In the Argentine Sea, demersal resources are the most important, both in economical and in ecological sense; so we hypothesize that fronts are also preferred fishing areas for demersal resources. We evaluated the relationship between spatial distribution of fishing effort and oceanographic fronts, analyzing three of the most important frontal systems located in the Argentine Sea: the shelf-break front, the southern Patagonia front and the mid-shelf front. Individual vessel satellite monitoring system data (VMS; grouped by fleet type: ice-trawlers, freezer-trawlers and jigging fleet) were studied and fishing events were identified. Fishing events per area were used as a proxy of fishing effort and its spatial distribution by fleet type was visualized and analyzed with Geographic Information Systems. Oceanographic fronts were defined using polygons based on satellite chlorophyll amplitude values, and the percentage of fishing events within each polygon was calculated. Results showed a positive association between fronts and fishing activities of the different fleets, which suggests the aggregation of target species in these zones. The coupling of the freezer-trawler and jigging fleets (that operate on lower trophic level species; Macruronus magellanicus and Illex argentinus respectively) with fronts was higher than the ice-trawler fleet, targeting species of higher trophic level (Merluccius hubbsi). Marine fronts represent important fishing areas, even for demersal resources, as the distribution of fishing fleets and fishing effort are positively associated with frontal zones.

  13. The radioprotective efficacy of the rat acute-phase protein alpha2-macroglobulin on bone marrow cells

    Directory of Open Access Journals (Sweden)

    Mihailović Mirjana

    2009-01-01

    Full Text Available The rat acute phase protein α2-macroglobulin (α2M plays an important role in the restoration of disrupted homeostasis by inhibiting different types of non-specific proteases and facilitating the transport of cytokines, growth factors and hormones. Previously, we observed that administration of α2M to experimental animals prior to the infliction of life- threatening trauma in the form of scalding or total-body irradiation, significantly improved their survival rates. The aim of the present work was to evaluate the radioprotective effect on blood cells of α2M that, when administered 30 min before irradiation with 6.7 Gy (LD50/30, provides 100% survival of experimental animals where in unprotected irradiated rats the said dose results in 50% lethality. We observed that rats pretreated with α2M, after an initial decline, exhibited complete recovery of the leukocyte count due to the preservation of bone marrow cells, observed as a stable mitotic index. In untreated irradiated rats the decrease of the mitotic index reflected the significant destruction of bone marrow cells that resulted in a protracted decline in the leukocyte count. We conclude that the radioprotection provided by α2M was in part mediated through cytoprotection of new blood cells produced in the bone marrow.

  14. Radioprotective effects of combination broncho-vaxom, a macrophage activator, and indomethacin, an inhibitor of prostaglandin production. Relationship to myelopoiesis

    Energy Technology Data Exchange (ETDEWEB)

    Fedorocko, P.; Mackova, N.O. [Safarik Univ., Faculty ofSciences, Dept. of Cellular and Molecular Biology, Kosice (Slovakia)

    1996-01-01

    The effects of the bacterial extract broncho-vaxom (BV; radioprotective immunomodulator; 500 {mu}g/mouse i.p., -24 h) and indomethacin (INDO; inhibitor of prostaglandin production; 2x40 {mu}g/mouse i.m., - 24 h and - 3 h) on the post-irradiation recovery of hemopoietic functions in mice were investigated. Both agents were administered either alone or in combination. Endogenous spleen colony formation was increased in all treatment groups, with combination-treated mice exhibiting the greatest effects. Similarly, 24 h after combined administration of BV and INDO (i.e. at the time of presumed irradiation) to the non-irradiated mice granulocyte-macrophage colony-forming cell (GM-CFC) numbers were greater in the bone marrow and spleen. Also, as determined by hydroxyurea injection, there was an increase in the number of GM-CFC in the S-phase of the cell cycle in the bone marrow. However, GM-CFC in the spleen of combination pretreated mice was not stimulated to significant proliferation as compared to GM-CFC in the spleen of mice injected with BV alone. Combined modality treatment was also more effective than single agent treatments in accelerating bone marrow cellularity and GM-CFC regeneration, but not in accelerating GM-CFC regeneration in the spleen. Combined administration of BV and INDO to mice prior to lethal irradiation exerted and additional radioprotective effect and protected 95% of the C57B1/6 mice. (au) 42 refs.

  15. Radioprotective effects of hesperidin on oxidative damages and histopathological changes induced by X-irradiation in rats heart tissue

    Directory of Open Access Journals (Sweden)

    Abolhasan Rezaeyan

    2016-01-01

    Full Text Available This study was carried out to evaluate radioprotective effects of hesperidin (HES administration before the irradiation on the cardiac oxidative stress and histopathological changes in an experimental rat model. The cardiovascular complications of radiation exposure cause morbidity and mortality in patients who received radiotherapy. HES, an antioxidant flavonoid found in citrus fruits, suggests the protection against the tissue damage. Fifty-eight rats were divided into four groups: Group 1 received phosphate buffered saline (PBS and sham radiation; Group 2, HES and sham radiation; Group 3, PBS and radiation; and Group 4, HES and radiation. The rats were exposed to single dose of 18 Gy of 6 MV X-ray. One hundred milligrams per kilogram doses of HES was administered for 7 days before irradiation. The estimation of superoxide dismutase (SOD, malondialdehyde (MDA, and histopathological analyses was performed at 24 h and 8 weeks after radiation exposure. The irradiation of chest area resulted in an elevated MDA level and decreased SOD activity. Moreover, long-term pathological lesions of radiation were inflammation, fibrosis, the increased number of mast cells and macrophages, and development of plaque, vascular leakage, myocardial degeneration, and myocyte necrosis. Although the administration of HES decreases inflammation, fibrosis, mast cell and macrophage numbers, and myocyte necrosis, it did not result in reduced thrombus, myocardium degeneration, and vascular leakage. In conclusion, these results suggest that HES can perform a radioprotection action. The protective effect of HES may be attributable to its immunomodulatory effects and free radical-scavenging properties.

  16. Micro-CT evaluation of the radioprotective effect of resveratrol on the mandibular incisors of irradiated rats

    Energy Technology Data Exchange (ETDEWEB)

    Rezende Barbosa, Gabriella Lopes de; Almeida, Solange Maria de, E-mail: gabriellalopes@live.com [Universidade de Campinas (UNICAMP), Piracicaba, SP (Brazil). Escola de Odontologia. Departmento de Diagnostico Oral; Pimenta, Luiz Andre [University of North Carolina at Chapel Hill, School of Dentistry, Department of Dental Ecology, Chapel Hill, NC (United States)

    2016-05-01

    The purpose of this study was to perform a micro computerized tomographic evaluation of the radioprotective effect of resveratrol on the volume of mandibular incisors of irradiated rats. A second aim was to make a quantitative assessment of the effect of x-ray exposure on these dental tissues. Twenty adult male rats were divided into four groups: control, irradiated control, resveratrol, and irradiated resveratrol. The resveratrol groups received 100 mg/kg of resveratrol, whereas the irradiated groups were exposed to 15 Gy of irradiation. The animals were sacrificed 30 days after the irradiation procedure, and their mandibles were removed and scanned in a micro computerized tomography unit. The images were loaded into Mimics software to allow segmentation of the mandibular incisor and assessment of its volume. The results were compared by One-way ANOVA and Tukey's post hoc test, considering a 5% significance level. The irradiated groups showed significantly diminished volumes of the evaluated teeth, as compared with the control group (p < 0.05). The resveratrol group presented higher values than those of the irradiated groups, and volumes similar to those of the control group. High radiation doses significantly affected tooth formation, resulting in alterations in the dental structure, and thus lower volumes. Moreover, resveratrol showed no effective radioprotective impact on dental tissues. Future studies are needed to evaluate different concentrations of this substance, in an endeavor to verify its potential as a radioprotector for these dental tissues. (author)

  17. Argentina; Argentine

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-04-01

    This economical study summarizes the energy situation of Argentina: energy institutions and policy, energy companies (oil, electricity, gas, coal), energy supplies (resources, power production, petroleum, natural gas), prices and tariffs, consumption, economical stakes and perspectives (investments, agreements, projects). Energy data for the 1971-1999 period are summarized in graphs and tables. (J.S.)

  18. Refractions of Civil Society

    DEFF Research Database (Denmark)

    Kuzmanovic, Daniella

    The thesis investigates various perceptions of civil society among civic activists in Turkey, and how these perceptions are produced and shaped. The thesis is an anthropological contribution to studies of civil society in general, as well as to studies on political culture in Turkey....

  19. Transformation of Neolithic Societies

    DEFF Research Database (Denmark)

    Iversen, Rune

    and prepared the way for the appearance of Bronze Age societies. The great era of megalithic architecture came to an end as the production and exchange of gold, copper and bronze objects became the driving force in the development of Copper and Bronze Age societies. This development also had a great influence...

  20. The Tranquebarian Society

    DEFF Research Database (Denmark)

    Jensen, Niklas Thode

    2015-01-01

    of this development was the establishment of the Tranquebarian Society, the third learned society east of the Cape of Good Hope. The article examines the unique assemblage of scientific networks, people, instruments, institutions, and ideas of local and global origin that converged in Tranquebar, and it investigates...

  1. American Society of Neuroradiology

    Science.gov (United States)

    ASNR American Society of Neuroradiology Forgot username or password ? .: International Day Of Radiology :. Tues, Nov 8 is International Day of Radiology. ... you celebrate, #neurorad? #IDoR2016 Once again, the European Society of Radiology has created a wonderful ... Tues, Nov ...

  2. Fieldwork in Transforming Societies

    DEFF Research Database (Denmark)

    Clark, Ed; Michailova, Snejina

    The contributors to this text discuss the personal and professional challenges of conducting fieldwork in the difficult, sometimes threatening contexts of the transforming societies of post-socialist Europe and China.......The contributors to this text discuss the personal and professional challenges of conducting fieldwork in the difficult, sometimes threatening contexts of the transforming societies of post-socialist Europe and China....

  3. Development of a photosensitive, high-throughput chip-based superoxide dismutase (SOD) assay to explore the radioprotective activity of herbal plants.

    Science.gov (United States)

    Naoghare, Pravin K; Kwon, Ho Taik; Song, Joon Myong

    2009-08-15

    Appropriate pharmacological interventions and modalities are needed to protect humans against the deleterious effects of ionizing radiation. We disclose a rapid chip-based approach to elucidate the radioprotective/antioxidant potential of herbal plants using a photodiode array (PDA) microchip system. Red light absorption property of nitroblue tetrazolium (NBT) formazan was applied to chip-based superoxide dismutase (SOD) activity measurements of six herbal plant extracts in a high-throughput manner. SOD activities obtained via gel-based assays were in line with the data obtained through the chip-based assay and hence validated our approach. Compared to amifostine, all the tested herbal plant extracts, except apricot kernel, demonstrated greater radioprotective properties. Among the tested herbal extracts, pueraria root showed the highest antioxidant/radioprotective activity and can be considered a preferred radioprotector candidate. Low standard deviations and high statistical confidence obtained during the assay prove the sensitivity and consistency of this approach. The developed approach has several advantages (simplicity, rapidness and portability) over existing methods and can be applied to high-throughput screening of the radioprotective properties of various unexplored plants species.

  4. Radioprotection of bone marrow stem cell subsets by interleukin-1 and kit-ligand : Implications for CFU-S as the responsible target cell population

    NARCIS (Netherlands)

    van Os, Ronald; Lamont, G; Witsell, A; Mauch, PM

    1997-01-01

    Various cytokines have been reported to have radioprotective effects on the bone marrow. Of these, c-kit-ligand (KL) and interleukin-1 (IL-1) have the most dramatic effect when given prior to total body irradiation (TBI). Given simultaneously, KL and IL-1 demonstrated a strong effect on increasing t

  5. Radio-protective effect of cinnamic acid, a phenolic phytochemical, on genomic instability induced by X-rays in human blood lymphocytes in vitro.

    Science.gov (United States)

    Cinkilic, Nilufer; Tüzün, Ece; Çetintaş, Sibel Kahraman; Vatan, Özgür; Yılmaz, Dilek; Çavaş, Tolga; Tunç, Sema; Özkan, Lütfi; Bilaloğlu, Rahmi

    2014-08-01

    The present study was designed to determine the protective activity of cinnamic acid against induction by X-rays of genomic instability in normal human blood lymphocytes. This radio-protective activity was assessed by use of the cytokinesis-block micronucleus test and the alkaline comet assay, with human blood lymphocytes isolated from two healthy donors. A Siemens Mevatron MD2 (Siemens AG, USA, 1994) linear accelerator was used for the irradiation with 1 or 2 Gy. Treatment of the lymphocytes with cinnamic acid prior to irradiation reduced the number of micronuclei when compared with that in control samples. Treatment with cinnamic acid without irradiation did not increase the number of micronuclei and did not show a cytostatic effect in the lymphocytes. The results of the alkaline comet assay revealed that cinnamic acid reduces the DNA damage induced by X-rays, showing a significant radio-protective effect. Cinnamic acid decreased the frequency of irradiation-induced micronuclei by 16-55% and reduced DNA breakage by 17-50%, as determined by the alkaline comet assay. Cinnamic acid may thus act as a radio-protective compound, and future studies may focus on elucidating the mechanism by which cinnamic acid offers radioprotection.

  6. Radioprotective effect of cimitidine on acutely irradiated mice survival and hematopoietic system

    Directory of Open Access Journals (Sweden)

    Qing-rong WANG

    2017-02-01

    Full Text Available Objective To investigate the radioprotective effect of cimetidine on survival rate and hematopoietic system in acutely irradiated mice. Methods The total body irradiation doses were 6.0Gy and 8.0Gy respectively at 1.01Gy/min rate. Sixty healthy male C57BL/6 mice were randomly divided into control group, model group, positive-drug (523 group and cimetidine groups (33.3mg/kg, 100mg/kg and 300mg/kg. Each group had ten mice. The mice were given intragastric administration of cimetidine for 6d before the irradiation in cimetidine groups, and 523 was administered before irradiation once a day for one day in 523 group, and at 5h after irradiation, was given again. The 30d survival rate after 8.0Gy irradiation was recorded. The peripheral blood cells, bone marrow DNA content and frequency of micronucleated polychromatic erythrocytes (fMNPCE were determined 30d after 6.0Gy irradiation. Results After 8.0Gy irradiation, all the mice died on 21th day in model control group. The survival rates in cimetidine groups were 50%, 20% and 30%, respectively. After 6.0Gy irradiation on 30th day, compared with control group, the peripheral white blood cells (WBC and bone marrow DNA content were decreased significantly (P<0.01, P<0.05 in model group, and fMNPCE was increased significantly (P<0.05. Compared with model group, WBC was significantly increased in 300mg/kg cimetidine group (P<0.01. In cimetidine groups, the bone marrow DNA content was increased significantly after irradiation (P<0.01 or P<0.05, and the fMNPCE was decreased significantly (P<0.01 or P<0.05and tended towards normal. Conclusion Cimetidine could improve 30d survival rate of acutely irradiated mice and has good protective effect on hematopoietic system. DOI: 10.11855/j.issn.0577-7402.2017.01.12

  7. Seventh meeting of radiation protection skilled persons; Septiemes rencontres des personnes competentes en radioprotection

    Energy Technology Data Exchange (ETDEWEB)

    Juhel, Th.; Briandchamplong, J.; Gambini, D.J.; Ammerich, M.; Aubert, B.; Barbey, P.; Biau, A.; Bruchet, H.; Capelle, M.H.; Flon, E.; Gauron, Ch.; Gravelotte, D.; Guerin, Ch.; Le Denmat, D.; Lemoine, Th.; Lombard, J.; Lucas, St.; Menechal, Ph.; Mignien, S.; Million, M.; Mozziconacci, J.G.; Prevot, S.; Radecki, J.J.; Rigaud, S.; Taillandier, P.; Timbert, M.; Vidal, J.P.; Bardelay, Ch.; Lahaye, Th.; Balduyck, S.; Chasson, E.; Rehel, J.L.; Chatellier, Ch.; Barret, Ch.; Guersen, J.; Degrange, J.P.; Sevestre, B.; Lahaye, Th.; Rodde, S.; Marchal, C.; Lefaure, Ch.; Bouk' il, H.; Gneiting, M.; Auboiroux, B.; Riedel, A.; Feuardent, J.; Scanff, P.; Bof, M.; Lochard, J.; Godet, J.L.

    2011-07-01

    This document gathers the slides of the available presentations given during these conference days. Twenty-three presentations out of 25 are assembled in the document and deal with: 1 - the evolution of workers' international protection rules against ionizing radiation risks (C. Bardelay); 2 - presentation of the report of the working group on radiation protection (P. Barbey); 3 - position of the French nuclear safety authority and of the labor general direction about the position of permanent expert groups in radiation protection concerning the expected evolutions in the occupation and training of radioprotection skilled persons (RSP), (T. Lahaye); 4 - experience feedback: RSP in surgery operating theater - a sometimes delicate intervention (S. Balduyck); 5 - workplace analysis in dental surgery: constraints and specificities (D. Le Denmat); 6 - workplace analysis: tritium atmospheric contamination (S. Rigaud); 7 - revision of the NFC 15-160 standard relative to radiology facilities (J.L. Rehel); 8 - example of area tele-dosimetry usage - the Pitie Salpetriere hospital experiment (C. Chatellier and C. Barret); 9 - contribution of radio-attenuation lead gloves in interventional radiology (J. Guersen); 10 - zoning in the medical domain: encountered problems typology and evaluation of possible solutions (Degrange, J.P.); 11 - management of used sealed sources distributed by the CEA and CISBIO (B. Sevestre); 12 - how to perform a measurement in radiation protection - how about measurement uncertainty (M. Ammerich); 13 - national campaign of control about the application of workers radiation protection rules (T. Lahaye); 14 - transparency and inspection approach in local nuclear applications: gamma-graphy, research, nuclear medicine, interventional radiography and radiotherapy (S. Rodde and C. Marchal); 15 - local/regional networks of RSPs and radiation protection actors: 2008 audit results and recent evolutions (C. Lefaure); 16 - role and missions of the external

  8. Mémoire d’un saccage. Argentine, le hold-up du siècle

    Directory of Open Access Journals (Sweden)

    Julien Welter

    2005-02-01

    Full Text Available Memoria del saqueo – la oscura trama de la corrupcion Documentaire argentin de Fernando SOLANAS, 2004, 120mn. Sortie de la dictature, l’Argentine ne pensait jamais connaître une nouvelle fois le cauchemar d’un désastre social. Ce pays, naguère le plus riche d’Amérique du Sud, a en effet tout tenté pour s’éloigner des régimes autoritaires conduisant à l’asservissement du peuple. Tout tenté, même l’extrême opposé, l’ultralibéralisme. En revenant sur ces années d’une politique en apparence ouver...

  9. Fairness in society

    CERN Document Server

    Flomenbom, Ophir

    2011-01-01

    Models that explain the economical and political realities of nowadays societies should help all the world's citizens. Yet, the last four years showed that the current models are missing. Here we develop a dynamical society-deciders model showing that the long lasting economical stress can be solved when increasing fairness in nations. fairness is computed for each nation using indicators from economy and politics. Rather than austerity versus spending, the dynamical model suggests that solving crises in western societies is possible with regulations that reduce the stability of the deciders, while shifting wealth in the direction of the people. This shall increase the dynamics among socio-economic classes, further increasing fairness.

  10. Information society studies

    CERN Document Server

    Duff, Alistair S

    2013-01-01

    We are often told that we are ""living in an information society"" or that we are ""information workers."" But what exactly do these claims mean, and how might they be verified? In this important methodological study, Alistair S. Duff cuts through the rhetoric to get to the bottom of the ""information society thesis."" Wide-ranging in coverage, this study will be of interest to scholars in information science, communication and media studies and social theory. It is a key text for the newly-unified specialism of information society studies, and an indispensable guide to the future of this disc

  11. Climate and Ancient Societies

    DEFF Research Database (Denmark)

    Climate, and human responses to it, have a strongly interconnected relationship. This when climate change occurs, the result of either natural or human causes, societies should react and adapt to these. But do they? If so, what is the nature of that change, and are the responses positive...... or negative for the long-term survival of social groups? In this volume, scholars from diverse disciplines including archaeology, geology and climate sciences explore scientific and material evidence for climate changes in the past, their causes, their effects on ancient societies and how those societies...

  12. Floral visitation by the Argentine ant reduces pollinator visitation and seed set in the coast barrel cactus, Ferocactus viridescens.

    Science.gov (United States)

    LeVan, Katherine E; Hung, Keng-Lou James; McCann, Kyle R; Ludka, John T; Holway, David A

    2014-01-01

    Mounting evidence indicates that trade-offs between plant defense and reproduction arise not only from resource allocation but also from interactions among mutualists. Indirect costs of plant defense by ants, for example, can outweigh benefits if ants deter pollinators. Plants can dissuade ants from occupying flowers, but such arrangements may break down when novel ant partners infiltrate mutualisms. Here, we examine how floral visitation by ants affects pollination services when the invasive Argentine ant (Linepithema humile) replaces a native ant species in a food-for-protection mutualism with the coast barrel cactus (Ferocactus viridescens), which, like certain other barrel cacti, produces extrafloral nectar. We compared the effects of floral visitation by the Argentine ant with those of the most prevalent native ant species (Crematogaster californica). Compared to C. californica, the Argentine ant was present in higher numbers in flowers. Cactus bees (Diadasia spp.), the key pollinators in this system, spent less time in flowers when cacti were occupied by the Argentine ant compared to when cacti were occupied by C. californica. Presumably as a consequence of decreased duration of floral visits by Diadasia, cacti occupied by L. humile set fewer seeds per fruit and produced fewer seeds overall compared to cacti occupied by C. californica. These data illustrate the importance of mutualist identity in cases where plants balance multiple mutualisms. Moreover, as habitats become increasingly infiltrated by introduced species, the loss of native mutualists and their replacement by non-native species may alter the shape of trade-offs between plant defense and reproduction.

  13. Society of Thoracic Surgeons

    Science.gov (United States)

    ... Care for You How to Use Apps and Social Media for Your Practice Why Participation in the STS ... STS_CTsurgery Surgeons Residents & Students Allied ... Hotel Discount for STS Members Copyright © 2016 The Society ...

  14. National Multiple Sclerosis Society

    Science.gov (United States)

    ... Join the Community Stay Informed Corporate Support National Multiple Sclerosis Society Meet the Challenge to end MS Give ... in MS Research November 2, 2016 View All Multiple Sclerosis News & Press View All Clinical Trial Alerts Every ...

  15. Scoliosis Research Society

    Science.gov (United States)

    Back To Top Scoliosis Research Society Close Menu Member Login Become a Member Home Find a Specialist | Calendar Contact | Donate Patients and Families Professionals About SRS العَرَبِية ...

  16. American Geriatrics Society

    Science.gov (United States)

    ... Travel Award for Research Symposium on Pharmacotherapy and Older Adults with CVD November 10th, 2016 Need Help Understanding MACRA? Check Out this Free Toolkit ... © 2016 The American Geriatrics Society. All rights reserved. Privacy Policy . Copyright & Permissions . Disclaimer .

  17. Valie EXPORT Society Rooseumis

    Index Scriptorium Estoniae

    2002-01-01

    Malmös Rooseumi Kaasaegse Kunsti Keskuses näitus "Baltic Babel". Projekt koosneb Läänemeremaade linnades tegutsevate innovatiivsete gruppide aktsioonidest. Kuraator Charles Esche. Esinejatest (Eestist Valie Export Society: Kadi Estland, Killu Sukmit)

  18. Valie EXPORT Society. Overlok

    Index Scriptorium Estoniae

    2001-01-01

    Valie EXPORT Society asutasid 23. okt. 1999. a. Frankfurdis Kadi Estland, Killu Sukmit ja Mari Laanemets, kui olid külastanud austria naiskunstniku Valie Exporti näitust. Rühmituse aktsioonide kirjeldus

  19. Changing anthropology, changing society.

    Science.gov (United States)

    Varughese, Heather

    2009-12-01

    Fifty years after the founding of the field of medical anthropology, the Society for Medical Anthropology of the American Anthropological Association held its first independent meeting on September 24-27, 2009, at Yale University.

  20. American Society of Nephrology

    Science.gov (United States)

    ... Week Abstracts In The Loop Request Missing Publication Advertising Opportunities Advocacy and public policy Legislative Action Center ... News Feed Society Events Interact With ASN rss Facebook Twitter YouTube Flickr LinkedIn Podcast ASN Communities Share ...

  1. Producing Civil Society

    DEFF Research Database (Denmark)

    Feldt, Liv Egholm; Hein Jessen, Mathias

    of the century. 2, the laws and strategies of implementing regarding the regulation of civil societal institutions (folkeoplysningsloven) since the 1970’s this paper shows how civil society in 20th century Denmark was produced both conceptually and practically and how this entailed a specific vision and version......Since the beginning of the 1990’s, civil society has attracted both scholarly and political interest as the ‘third sphere’ outside the state and the market not only a normatively privileged site of communication and ‘the public sphere’, but also as a resource for democratization processes......’ and as such dominates our way of thinking about civil society. Yet, this view hinders the understanding of how civil society is not a pre-existing or given sphere, but a sphere which is constantly produced both discursively, conceptually and practically. Through two examples; 1,the case of philanthropy in the beginning...

  2. Consumption in the Information Society

    Science.gov (United States)

    Zherebin, V. M.; Ermakova, N. A.; Makhrova, O. N.

    2010-01-01

    The current state of the economy in the developed countries make it possible to characterize them using concepts and terms such as the postindustrial society, the new economy, the service economy, the creative economy, the posteconomic society, the information society, the knowledge society, and the consumer society. Among these terms and…

  3. Radioactivity and radioprotection: the every day life in a nuclear installation. Press tour at CEA/GRENOBLE 18 november 1999; Radioactivite et radioprotection: la vie quotidienne dans une installation nucleaire. Voyage de presse au Centre CEA/CADARACHE 18 novembre 1999

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-11-01

    In the framework of the public information, this paper gives a general information on the radioactivity and the radioprotection at the CEA/Cadarache center. A first part is devoted to a presentation of the radioactivity with definitions and radiation effects on the human being and the environment. An other part presents the radioprotection activities and regulations. The last part deals with specific activities of the CEA/Cadarache: the CASCAD installations for spent fuels storage, the LECA Laboratory for the Examination of Active Fuels and a dismantling installation for big irradiated objects. Historical aspects of the CEA/Cadarache are also provided. (A.L.B.)

  4. A New Orally Active, Aminothiol Radioprotector-Free of Nausea and Hypotension Side Effects at Its Highest Radioprotective Doses

    Energy Technology Data Exchange (ETDEWEB)

    Soref, Cheryl M. [ProCertus BioPharm, Inc., Madison, WI (United States); Hacker, Timothy A. [Department of Medicine, Cardiovascular Physiology Core, University of Wisconsin-Madison, Madison, WI (United States); Fahl, William E., E-mail: fahl@oncology.wisc.edu [ProCertus BioPharm, Inc., Madison, WI (United States); McArdle Laboratory for Cancer Research, University of Wisconsin Carbone Cancer Center, Madison, WI (United States)

    2012-04-01

    Purpose: A new aminothiol, PrC-210, was tested for orally conferred radioprotection (rats, mice; 9.0 Gy whole-body, which was otherwise lethal to 100% of the animals) and presence of the debilitating side effects (nausea/vomiting, hypotension/fainting) that restrict use of the current aminothiol, amifostine (Ethyol, WR-2721). Methods and Materials: PrC-210 in water was administered to rats and mice at times before irradiation, and percent-survival was recorded for 60 days. Subcutaneous (SC) amifostine (positive control) or SC PrC-210 was administered to ferrets (Mustela putorius furo) and retching/emesis responses were recorded. Intraperitoneal amifostine (positive control) or PrC-210 was administered to arterial cannulated rats to score drug-induced hypotension. Results: Oral PrC-210 conferred 100% survival in rat and mouse models against an otherwise 100% lethal whole-body radiation dose (9.0 Gy). Oral PrC-210, administered by gavage 30-90 min before irradiation, conferred a broad window of radioprotection. The comparison of PrC-210 and amifostine side effects was striking because there was no retching or emesis in 10 ferrets treated with PrC-210 and no induced hypotension in arterial cannulated rats treated with PrC-210. The tested PrC-210 doses were the ferret and rat equivalent doses of the 0.5 maximum tolerated dose (MTD) PrC-210 dose in mice. The human equivalent of this mouse 0.5 MTD PrC-210 dose would likely be the highest PrC-210 dose used in humans. By comparison, the mouse 0.5 MTD amifostine dose, 400 {mu}g/g body weight (equivalent to the human amifostine dose of 910 mg/m{sup 2}), when tested at equivalent ferret and rat doses in the above models produced 100% retching/vomiting in ferrets and 100% incidence of significant, progressive hypotension in rats. Conclusions: The PrC-210 aminothiol, with no detectable nausea/vomiting or hypotension side effects in these preclinical models, is a logical candidate for human drug development to use in healthy

  5. Transnationalising Civil Society?

    DEFF Research Database (Denmark)

    Jørgensen, Martin Bak

    The paper takes a transnational perspective on developing an analytical framework for understanding how transnationalism interacts with civil society and how immigrant organisations use transnational strategies to challenge the pre-given positions of immigrants within given integration- and citiz......The paper takes a transnational perspective on developing an analytical framework for understanding how transnationalism interacts with civil society and how immigrant organisations use transnational strategies to challenge the pre-given positions of immigrants within given integration...

  6. The Tranquebarian Society

    DEFF Research Database (Denmark)

    Jensen, Niklas Thode

    2015-01-01

    of this development was the establishment of the Tranquebarian Society, the third learned society east of the Cape of Good Hope. The article examines the unique assemblage of scientific networks, people, instruments, institutions, and ideas of local and global origin that converged in Tranquebar, and it investigates...... the fusion of local problems and radical ideas of enlightenment, education, and improvement that united government, mission, and merchants in Tranquebar in the quest for ‘useful knowledge’....

  7. Family in contemporary society

    OpenAIRE

    Rabije Murati

    2016-01-01

    The family is part of social change and, as such changes and transform into steps with modern trends of society. Family function in a given society is structured according to the overall changes that occur in all areas of social life, not neglecting family life. The contemporary conditions impose requirements that must be met to move forward with the times that follow. In particular, should highlight the social changes that are related to the growth and advancement of the educational and prof...

  8. IRSN's statement on the French electronuclear stock safety and radioprotection in 2008; Le point de vue de l'IRSN sur la surete et la radioprotection du parc electronucleaire francais en 2008

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2009-07-01

    In a first part, this report presents the main trends emerging from a global survey of the operating stock safety during 2008. Then, it presents and comments events which impacted safety during this year: a difficult fuel unloading in the Tricastin plant, a partial unavailability of a safeguard function, silting up in the Fessenheim pumping station. It also presents a synthesis of events which concerned the personnel radioprotection. A third part deals with so-called generic anomalies, i.e. those affecting several plants: fatigue cracking of vapour generator tubes, corrosion of sea-side equipment, risks related to hydrogen use, introduction of a new fuel cladding material, high room temperature for safety injection pumps, degradation of supports of some ducts important for safety. The last part presents and comments important evolutions which have been implemented or planned, and which are generally operation modifications or developments for matters of safety, but also for economic reasons.

  9. Perpetuating Social Movements amid Declining Opportunity: The Survival Strategies of Two Argentine Piquetero Groups

    Directory of Open Access Journals (Sweden)

    Edward C. Epstein

    2009-04-01

    Full Text Available This article examines the recent behaviour in Argentina of two national protest groups of socalled ‘piqueteros’ or picketers (impoverished unemployed individuals who used the blockage of strategic roads and bridges to force government concessions that emerged politically in the buildup to the crisis of 2001-2002. Using theoretical concepts developed by McAdam, Tarrow, and Tilly in understanding social movements, the author analyses what he calls the ‘survival strategy’ adopted by their leaders as the political opportunities that produced their initial growth gave way to a more hostile environment with the normalization of Argentine politics under the Kirchner administration. While the two piquetero groups studied differ considerably in terms of their politics and ideology, both ended up depending on the same traditional tactic of utilizing important government contacts to obtain the resources necessary for organizational maintenance, despite their nominal identity as radical protesters against the present political system.Resumen: Perpetuando movimientos sociales y oportunidades decrecientes: las estrategias de sobrevivencia de dos grupos de piqueteros argentinesEste artículo examina el comportamiento reciente de dos grupos nacionales de protesta argentinos llamados ‘piqueteros’ (desempleados empobrecidos que usaron el bloqueo de calles y puentes estratégicos para forzar concesiones gubernamentales que aparecieron durante la crisis de 2001- 2002. Utilizando conceptos teóricos creados por McAdam, Tarrow, y Tilly en su discusión sobre los movimientos sociales, el autor analiza lo que describe como ‘estrategias de sobrevivencia’ adoptadas por sus dirigentes cuando las oportunidades que ocasionaron su crecimiento inicial cedieron ante un ambiente más hostil en el contexto de la normalización de la política argentina durante la administración de Kirchner. Aunque los dos grupos piqueteros estudiados se diferencian mucho en t

  10. La place de l’œuvre d’art dans une exposition sur la radioprotection : Etude du dispositif expographique et de sa réception par les visiteurs

    OpenAIRE

    Urbas, Boris

    2015-01-01

    International audience; The travelling exhibition “Vous avez dit radioprotection?” is coproduced by a science centre, (le Pavillon des Sciences), a scientific institution, the Radioprotection and Nuclear Safety Institute (IRSN), and the Pays de Montbéliard Agglomération regional authority. It gives an historic perspective on the discovery of radioactivity, and on radiation protection from two main devices: didactic films and artistic creations. Within the framework of a doctorate research in ...

  11. Radioprotective drugs: a synopsis of current research and a proposed research plan for the Federal Emergency Management Agency. Final report

    Energy Technology Data Exchange (ETDEWEB)

    Hickman, R.; Anspaugh, L.

    1985-04-01

    FEMA has broad roles in the management of disasters potentially involving substantial amounts of radioactive contamination. These could be either peacetime or wartime disasters. A meeting was held in March 1985 to see if there are any research contributions that FEMA might reasonably make in the area of radioprotective drugs that would substantially enhance its ability to perform its mission. The other federal agencies presently sponsoring research in the field were represented at the meeting. A few selected researchers also participated to provide complementary viewpoints. Activities of a modest scale that FEMA might undertake were identified, as were larger scale activities that might be undertaken in the event of long-term, major funding-level increases for FEMA. 2 refs.

  12. Lycopene as A Carotenoid Provides Radioprotectant and Antioxidant Effects by Quenching Radiation-Induced Free Radical Singlet Oxygen: An Overview

    Directory of Open Access Journals (Sweden)

    Jalil Pirayesh Islamian

    2015-01-01

    Full Text Available Radio-protectors are agents that protect human cells and tissues from undesirable ef - fects of ionizing radiation by mainly scavenging radiation-induced free radicals. Although chemical radio-protectors diminish these deleterious side effects they induce a number of unwanted effects on humans such as blood pressure modifications, vomiting, nausea, and both local and generalized cutaneous reactions. These disadvantages have led to emphasis on the use of some botanical radio-protectants as alternatives. This review has collected and organized studies on a plant-derived radio-protector, lycopene. Lycopene protects normal tissues and cells by scavenging free radicals. Therefore, treatment of cells with lycopene prior to exposure to an oxidative stress, oxidative molecules or ion - izing radiation may be an effective approach in diminishing undesirable effects of radia - tion byproducts. Studies have designated lycopene to be an effective radio-protector with negligible side effects.

  13. Radioprotective Role of Some Bacteria Belonging to Actinomycetales against Gamma Irradiation-Induced Oxidative Stress in Male Albino Rats

    Directory of Open Access Journals (Sweden)

    Seham Abdel-Shafi1, Tamer M. M. Saad2 *, Abdel-Haliem M. E. F.1, Abdel-Rahman M. A. Ghonemey2, and Gamal Enan1

    2016-07-01

    Full Text Available Background: radiation protection concepts and philosophy have been evolving over the past several decades. The inadvertent exposure of human from various source of radiation causes ionization of molecules, setting off potentially damaging reactions via free radicals production. Development of radioprotectants and mitigators is the therapeutic approach to ameliorate the negative health impact of radiation exposure. The majority of substances with biological activity used in medicine are produced by actinomycetes and fungi. Aim: the aim of the present study is to evaluate the radioprotective role of the antimicrobial active metabolite of Streptomyces atrovirens Rahman as antioxidant against gamma irradiation that induced some biochemical alterations in rats. Material and Methods: animals were pretreated with antimicrobial active metabolite of Streptomyces atrovirens Ab1 using suitable stomach tube for two weeks prior to radiation exposure. The levels of malondialdhyde (MDA, glutathione content (GSH, superoxide dismutase (SOD, catalase (CAT, glutathione peroxidase (GPx, glutamic oxaloacetic transaminase (ALT, glutamic aspartate transaminase (AST, alkaline phosphatase (ALP and gamma glutamyl transferase (GGT activities, also total cholesterol (TC, triglyceride (TG, high density lipoprotein cholesterol (HDL-C, and low density lipoprotein cholesterol (LDL- C were estimated. Results: the results revealed that exposure to ionizing radiation resulted in significant elevation in the levels of MDA content, ALT, AST, ALP and GGT activities and concentration of TC, TG and LDL-C, meanwhile, showed significant depletion in GSH content and SOD, CAT and GPx activities and HDL-C concentration. Conclusion: it could be concluded that, the administration of the antimicrobial active metabolite of Streptomyces atrovirens Ab1 pre-whole body gamma irradiation resulted in sufficient amelioration against radiation effects on the biochemical aspects examined in the present

  14. Curcumin and trans-resveratrol exert cell cycle-dependent radioprotective or radiosensitizing effects as elucidated by the PCC and G2-assay

    Energy Technology Data Exchange (ETDEWEB)

    Sebastià, N., E-mail: natividad.sebastia@uv.es [Radiation Protection Service, IIS La Fe, Health Research Institute La Fe, Valencia (Spain); Montoro, A. [Radiation Protection Service, Universitary and Politechnic Hospital La Fe, Valencia (Spain); Grupo de Investigación Biomédica en Imagen GIBI230, IIS La Fe, Health Research Institute La Fe, Valencia (Spain); Unidad Mixta de Investigación en Endocrinología, Nutrición y Dietética Clínica, IIS La Fe, Health Research Institute La Fe, Valencia (Spain); Hervás, D. [Biostatistics Unit, IIS La Fe, Health Research Institute La Fe, Valencia (Spain); Pantelias, G.; Hatzi, V.I. [Institute of Nuclear and Radiological Sciences and Technology, Energy and Safety, National Centre for Scientific Research “Demokritos”, Aghia Paraskevi, Athens (Greece); Soriano, J.M. [Grupo de Investigación Biomédica en Imagen GIBI230, IIS La Fe, Health Research Institute La Fe, Valencia (Spain); Unidad Mixta de Investigación en Endocrinología, Nutrición y Dietética Clínica, IIS La Fe, Health Research Institute La Fe, Valencia (Spain); Department of Preventive Medicine and Public Health, Faculty of Pharmacy, University of Valencia, Burjassot, Valencia (Spain); Villaescusa, J.I. [Radiation Protection Service, Universitary and Politechnic Hospital La Fe, Valencia (Spain); and others

    2014-08-15

    Highlights: • Curcumin and trans-resveratrol can exert radioprotective or radiosensitizing effects. • The mechanisms underlying such dual action were elucidated using the PCC and G2-assay. • Radioprotection occurs in non-cycling cells exposed to curcumin and resveratrol. • Radiosensitization occurs in cycling cells exposed to the chemicals. • G2-checkpoint abrogation by the chemicals underlies the radiosensitizing mechanism. - Abstract: Curcumin and trans-resveratrol are well-known antioxidant polyphenols with radiomodulatory properties, radioprotecting non-cancerous cells while radiosensitizing tumor cells. This dual action may be the result of their radical scavenging properties and their effects on cell-cycle checkpoints that are activated in response to radiation-induced chromosomal damage. It could be also caused by their effect on regulatory pathways with impact on detoxification enzymes, the up-regulation of endogenous protective systems, and cell-cycle-dependent processes of DNA damage. This work aims to elucidate the mechanisms underlying the dual action of these polyphenols and investigates under which conditions they exhibit radioprotecting or radiosensitizing properties. The peripheral blood lymphocyte test system was used, applying concentrations ranging from 1.4 to 140 μM curcumin and 2.2 to 220 μM trans-resveratrol. The experimental design focuses first on their radioprotective effects in non-cycling lymphocytes, as uniquely visualized using cell fusion-mediated premature chromosome condensation, excluding, thus, cell-cycle interference to repair processes and activation of checkpoints. Second, the radiosensitizing potential of these chemicals on the induction of chromatid breaks in cultured lymphocytes following G2-phase irradiation was evaluated by a standardized G2-chromosomal radiosensitivity predictive assay. This assay uses caffeine for G2-checkpoint abrogation and it was applied to obtain an internal control for radiosensitivity

  15. Digital Denmark: From Information Society to Network Society

    DEFF Research Database (Denmark)

    Henten, Anders; Falch, Morten

    2000-01-01

    The Danish Government recently issued a new policy report, Digital Denmark, on the "conversion to a network society", as a successor to its Information Society 2000 report (1994). This is part of a new round of information society policy vision statements that are, or will be forthcoming from...... for the next phase of information society development. (C) 2000 Elsevier Science Ltd. All rights reserved....

  16. [Prevalence of hepatitis C antibodies in plasma donors for the treatment of Argentine hemorrhagic fever].

    Science.gov (United States)

    Saavedra, M C; Briggiler, A M; Enría, D; Riera, L; Ambrosio, A M

    1997-01-01

    For Argentine Hemorrhagic Fever, a disease caused by Junin virus (JV), there is an effective treatment, consisting of the transfusion of immune plasma (IP). This plasma is obtained from individuals who have had the disease. Since Hepatitis C virus (HCV) is transmitted parenterally, this study was aimed to estimate the prevalence of anti-HCV in a population of IP donors. In this study, 376 donors (47 females and 329 males) were studied: 95 individuals (24 females and 71 males) who had had FHA but had not received treatment and 88 laboratory workers (57 females and 31 males) who were included as controls. Serum samples were tested by EIA (Abbott, Germany) for HCV, and later confirmed by LIATEK (Organon, Ireland). Antibodies to HCV were detected in 29/376 donors (7.7%), in only 1/95 (1.0%) untreated convalescents of AHF and in 1/ 88 (1.1%) of laboratory workers. Retrospective analysis of the seroconversion for HCV in these individuals demonstrated that in 16/24 donors (66.6%) the infection by HCV was probably associated with the IP transfusion. The data presented herein show how the infection with HCV was disseminated among donors of IP, stressing the risk associated to transfusional practices, and emphasizing the need of vaccination to prevent AHF and also the risk inherent to its treatment.

  17. Moessbauer and magnetic studies of parent material from argentine pampas soils

    Energy Technology Data Exchange (ETDEWEB)

    Bidegain, J. C. [Laboratorio de Entrenamiento Multidisciplinario para la Investigacion Tecnologica (Argentina); Bartel, A. A. [Universidad Nacional de La Pampa, Facultad de Ciencias Exactas y Naturales (Argentina); Sives, F. R.; Mercader, R. C., E-mail: mercader@fisica.unlp.edu.ar [Universidad Nacional de La Plata, Departamento de Fisica, Facultad de Ciencias Exactas (Argentina)

    2007-02-15

    In order to establish a correlation between the different types of soils using hyperfine and magnetic parameters as climatic and environmental proxies, we have studied the differentiation of soil developed around 38.5{sup o} south latitude, in the central Pampas of Argentina, by means of Moessbauer spectroscopy and environmental magnetism. The soils transect (climosequence) investigated stretches from the drier west (around 64{sup o} W) to the more humid east (at around 59{sup o} W) in the Buenos Aires Province, covering a distance of 600 km. The soils studied developed during recent Holocene geologic times in a landscape characterized by small relict plateaus, slopes and depressions, dunes and prairies. The parent material consists of eolian sandy silts overlying calcrete layers. The low mean annual precipitation in the western parts of the region gives rise to soils without B-horizons, which limits the agricultural use of land. The preliminary results show an increase of the paramagnetic Fe{sup 3+} relative concentration from west to east in the soils investigated. Magnetite is probably mainly responsible for the observed enhancement in the susceptibility values. The magnetic response of the parent material is similar to that of the loess part of the previously investigated loess-paleosol sequences of the Argentine loess plateau.

  18. Characteristics of pica practice during pregnancy in a sample of Argentine women.

    Science.gov (United States)

    López, L B; Marigual, M; Martín, N; Mallorga, M; Villagrán, E; Zadorozne, M E; Martín De Portela, M L P; Ortega Soler, C R

    2012-02-01

    The purpose of this study was to describe the practice of pica during pregnancy in Argentine women. Maternal and fetal characteristics as well as the practice of pica were evaluated during the puerperium in a sample of 1,014 women from five different geographical areas. Pica prevalence for the total sample was 23.2% (95% CI 20.6-25.8). Pagophagia (ice consumption) was the main type of pica practice, followed by geophagia (earth intake) and the ingestion of soap, toothpaste and chalk. The onset of the practice was mainly in the first months of pregnancy. A total of 49.8% of women revealed a family history of pica; 30.6% had pica in childhood and 13.2% suffered from polypica. Women with pica during pregnancy had similar age, pre-pregnancy body mass index (BMI), parity, neonatal birth weight and gestational age compared with non-pica mothers, although maternal haemoglobin concentration was lower in women with pica than in non-pica mothers (p = 0.0001).

  19. Les intellectuels espagnols exilés dans l'Argentine peroniste

    Directory of Open Access Journals (Sweden)

    Laurent Bonardi

    2008-12-01

    Full Text Available El gobierno argentino del general Perón reveló ser un verdadero chaleco salvavidas para la dictadura española. Esta política de cooperación provoca una viva oposición en Argentina. Este trabajo propone un análisis de las reacciones de los intelectuales españoles exiliados en Argentina. Observaremos de que manera los intelectuales españoles lucharon contra la dictadura franquista durante el idilio hispano-argentino y analizaremos el “modus operandi” adoptado por el gobierno peronista para obstaculizar las actividades anti-franquistas en el exilio.__________________ABSTRACT:The Argentine government of general Perón becomes an authentic life jacket for the Spanish dictatorship. This policy of cooperation triggers ample dispproval in Argentina. We propose an analysis of the reactions of the spanish intellectuals exiled in Argentina. We will see how the Spanish intellectuals fight against the Franco dictatorship during the honeymoon Hispanic-Argentinean. Also we will analyze the modus operandi adopted by the Peronist government to prevent the antifrancoist activities of the exiliados.

  20. Les variations glaciaires dans les Andes de Mendoza (Argentine entre 1975 et 2007

    Directory of Open Access Journals (Sweden)

    Étienne Cossart

    2010-05-01

    Full Text Available Le suivi des glaciers constitue un enjeu essentiel pour l’organisation des sociétés et le fonctionnement des milieux montagnards. Dans la mesure où les glaciers influencent fortement le régime des cours d’eau, et donc les stratégies d’irrigation, leur disparition peut remettre en cause de nombreux usages liés à l’eau. Or, si nombre de glaciers sont étudiés individuellement, des méthodes permettant d’effectuer des suivis de l’englacement à l’échelle régionale manquent. Nous proposons donc ici une méthode, fondée sur la reconstitution de champs d’altitudes de la Ligne d’Équilibre Glaciaire, aboutissant à la réalisation de cartes diachroniques régionales. Nous synthétisons ainsi les variations glaciaires depuis 30 ans sur l’ensemble d’un secteur de plusieurs milliers de kilomètres carr��s : les Andes de Mendoza (Argentine.

  1. Activity of bifenthrin, chlorfenapyr, fipronil, and thiamethoxam against Argentine ants (Hymenoptera: Formicidae).

    Science.gov (United States)

    Wiltz, B A; Suiter, D R; Gardner, W A

    2009-12-01

    Bifenthrin, chlorfenapyr, fipronil, and thiamethoxam were evaluated for activity against the Argentine ant, Linepithema humile (Mayr) (Hymenoptera: Formicidae). Mobility impairment and lethal times were determined after topical treatments. Ants were immobilized most quickly by bifenthrin, followed by chlorfenapyr and thiamethoxam. After 2 h, the number of fipronil-treated ants unable to walk out of test arenas did not differ from control ants. Median lethal time (LT50) after topical treatment was lowest in the bifenthrin treatment, followed by thiamethoxam, chlorfenapyr, and then fipronil. Mortality due to horizontal exposure was evaluated at 10, 20, or 30 degrees C, with topically treated ant corpses serving as donors. There was low to moderate horizontal activity in bifenthrin and chlorfenapyr treatments, with no temperature effect in bifenthrin treatments and a positive temperature effect in chlorfenapyr treatments. Mortality in the fipronil treatments was highest and was positively correlated with temperature. Thiamethoxam treatments did not differ from controls at 10 degrees C, but mortality increased with temperature. To evaluate contact activity, either all of 20% of the ants in a cohort were exposed to insecticide-treated pine needles. In both tests, mortality was highest in fipronil and bifenthrin treatments, followed by thiamethoxam, with lowest mortality in chlorfenapyr treatments. Effectiveness as a barrier was evaluated by providing a choice between bridges treated with insecticide or water. Although bifenthrin did not provide an impenetrable barrier, it was the only treatment having fewer ants than its paired control. Mortality data suggest that lack of recruitment rather than repellency account for this result.

  2. Impact of CPS1 Gene rs7422339 Polymorphism in Argentine Patients With Hyperhomocysteinemia

    Directory of Open Access Journals (Sweden)

    Silene M. Silvera-Ruiz BSc

    2015-05-01

    Full Text Available Carbamoyl phosphate synthetase 1 (CPS1 is a key gene in the first step of urea cycle and has been correlated with nitric oxide level and vascular smooth muscle activity. A functional single-nucleotide polymorphism C/A at position 4217 in CPS1 (National Center for Biotechnology Information SNP database no. rs7422339, T1405N was reported to be associated with high homocysteine (Hcy plasma values. Although genetic variants of methylenetetrahydrofolate reductase (MTHFR gene are known to influence Hcy concentration, other genetic determinants of Hcy remain largely unknown. The association between the CPS1 rs7422339 and the risk of hyperhomocysteinemia in Latin American populations is unknown. Here, we study this association in 100 patients having hyperhomocysteinemia without MTHFR c.677C>T polymorphism and 100 controls. CPS1 rs7422339 was studied using polymerase chain reaction and enzymatic restriction. Comparisons of the CPS1 rs7422339 genotype distributions revealed a significant difference between groups (P = 2.3 × 10−3. Patients carrying polymorphic allele showed almost 3 times higher risk (odds ratio [OR] = 2.47 of hyperhomocysteinemia than wild-type allele, suggesting that rs7422339 SNP is associated with high Hcy levels in the Argentine population.

  3. Urban Infestation Patterns of Argentine Ants, Linepithema humile, in Los Angeles

    Directory of Open Access Journals (Sweden)

    Smadar Gilboa

    2012-01-01

    Full Text Available Infestations of buildings by Argentine ants, Linepithema humile (Mayr, were monitored on the campus of the University of California, Los Angeles. Foraging ant activity peaked during the hotter months of the year. The mean monthly maximum temperature, but not rainfall, positively correlated with indoor infestation frequency. Neither garden size nor the predominant groundcover vegetation correlated with the number of foraging ants at baits within gardens. Although the number of foraging ants outside a building varied over 40-fold, ant density in gardens did not predict the likelihood of infestation within the building. Also, the type of vegetative groundcover employed did not predict infestation frequency. There was, however, a significant negative relationship between the size of the garden outside of a building and the number of infestations. Given the large foraging area of L. humile workers, buildings next to small gardens may be infested simply because they lie within the “normal” foraging area of a colony. The best predictor of which rooms were infested within buildings was the presence of a water source. Thus providing water for ant colonies outside and away from buildings may be one method of integrated pest management to reduce the proclivity of ants to infest structures.

  4. Lithologic identification and characterization using ETM+ (Landsat 7. Study case of the Upsala glacier basin, Argentine

    Directory of Open Access Journals (Sweden)

    A. Lo Vecchio

    2016-06-01

    Full Text Available The object of this study aims to evaluate and analyze digital image processing techniques applied to the Enhanced Thematic Mapper Plus (ETM+, in order to demark and characterize the outcropping lithologies on the Upsala Glacier basin, Santa Cruz, Argentine Republic. The prolific technological and spatial development experienced in the last decades has given place to the generation, without precedents, of multiple remote sensors capable of capturing information of the terrestrial surface and also the improvement of digital image processing techniques and software; amongst them, the amazing possibilities in the detection and differentiation of diverse covers present on the terrestrial surface can be highlighted, such as glaciers, volcanoes, vegetation, soils, water, types of rock outcrops, etc. This situation improves mapping and monitoring of natural phenomenon in the Earth Sciences field. The proposed methodology includes radiometric corrections, elimination of unwanted covers, statistical evaluation in the combination of the most appropriate bands, application of the Z index, discretization of the statistical series, entailing tasks of spectral classification with field samples and a later validation. Valuable results were obtained by means of digital processing of images, that were validated yielding a 82% of accuracy in the proposed classification, which are good results taking into account the diversity of covers present and the lithological heterogeneity that makes up each pixel (30m. These results were also validated with existing geological maps, obtaining a good agreement.

  5. Inhibition of cyclooxygenase activity by standardized hydroalcoholic extracts of four Asteraceae species from the Argentine Puna

    Directory of Open Access Journals (Sweden)

    M.R. Alberto

    2009-09-01

    Full Text Available We determined the anti-inflammatory activity of standardized extracts of four medicinal plant species (Baccharis incarum, B. boliviensis, Chuquiraga atacamensis, Parastrephia lucida that grow in the Argentine Puna (3800 m above sea level and that are used to reduce oxidative stress and alleviate gout and arthritic pain. The extracts of plant aerial parts were standardized in terms of total phenolic compounds and flavone/flavanone content and free radical scavenging activity. All extracts showed high phenolic compound concentration (0.5-1.6 mg/mL, mainly flavones and flavonols (0.1-0.8 mg/mL. The extracts showed hydrogen donating ability (DPPH and ABTS and reactive oxygen species scavenging activity (O2●-, OH-, H2O2. The ability of the extracts to inhibit cyclooxygenase enzymes (COX-1 and COX-2 was determined by calculating percent inhibition of PGE2 production measured by enzyme immunoassay. All extracts inhibited both enzymes with IC50 values of 2.0 to 16.7 µg/mL. The anti-inflammatory activity of B. incarum and C. atacamensis extracts was higher than that of B. boliviensis and P. lucida. The IC50 values obtained for indomethacin were 0.11 and 0.78 µM for COX-1 and COX-2, respectively. The present results are consistent with the anecdotal use of these species in phytotherapic preparations.

  6. Inhibition of cyclooxygenase activity by standardized hydroalcoholic extracts of four Asteraceae species from the Argentine Puna.

    Science.gov (United States)

    Alberto, M R; Zampini, I C; Isla, M I

    2009-09-01

    We determined the anti-inflammatory activity of standardized extracts of four medicinal plant species (Baccharis incarum, B. boliviensis, Chuquiraga atacamensis, Parastrephia lucida) that grow in the Argentine Puna (3800 m above sea level) and that are used to reduce oxidative stress and alleviate gout and arthritic pain. The extracts of plant aerial parts were standardized in terms of total phenolic compounds and flavone/flavanone content and free radical scavenging activity. All extracts showed high phenolic compound concentration (0.5-1.6 mg/mL), mainly flavones and flavonols (0.1-0.8 mg/mL). The extracts showed hydrogen donating ability (DPPH and ABTS) and reactive oxygen species scavenging activity (O2-, OH-, H2O2). The ability of the extracts to inhibit cyclooxygenase enzymes (COX-1 and COX-2) was determined by calculating percent inhibition of PGE2 production measured by enzyme immunoassay. All extracts inhibited both enzymes with IC50 values of 2.0 to 16.7 microg/mL. The anti-inflammatory activity of B. incarum and C. atacamensis extracts was higher than that of B. boliviensis and P. lucida. The IC50 values obtained for indomethacin were 0.11 and 0.78 microM for COX-1 and COX-2, respectively. The present results are consistent with the anecdotal use of these species in phytotherapic preparations.

  7. Chromosomal variation in Argentine populations of Akodon montensis Thomas, 1913 (Rodentia, Cricetidae, Sigmodontinae).

    Science.gov (United States)

    Malleret, Matías Maximiliano; Labaroni, Carolina Alicia; García, Gabriela Verónica; Ferro, Juan Martín; Martí, Dardo Andrea; Lanzone, Cecilia

    2016-01-01

    The genus Akodon Meyen, 1833 is one of the most species-rich among sigmodontine rodents and has great chromosome variability. Akodon montensis has a relatively broad distribution in South America, and Argentine populations are located in the southernmost region of its range. Brazilian populations have important chromosomal variability, but cytogenetic data from Argentina are scarce. We performed a chromosome characterization of natural populations of Akodon montensis using conventional staining, C-banding, Ag-NORs and base-specific fluorochromes. A total of 31 specimens from five localities of Misiones Province, in Argentina, were analyzed. The 2n=24 chromosomes was the most frequently observed karyotype. However, five individuals presented 25 chromosomes due to a supernumerary B-chromosome; and one individual had 2n=26 due to one B plus a trisomy for chromosome 11. Additionally, two XY females and two variants of the X chromosomes were found. C-positive centromeric bands occurred in all chromosomes; additional C-bands were observed in some autosomes, the X, Y and B chromosomes. Ag-NORs were observed in five autosomes, and the B chromosome was frequently marked. Fluorochrome banding was similar among karyotypes of the analyzed populations. Comparisons of cytogenetic data among populations of Argentina and Brazil showed the presence of high intraspecific variability in Akodon montensis and some differences among regions.

  8. Myxozoans as biological tags for stock identification of the Argentine hake, Merluccius hubbsi (Gadiformes: Merlucciidae).

    Science.gov (United States)

    Cantatore, D M P; Irigoitia, M M; Holzer, A S; Timi, J T

    2016-05-01

    Myxozoans have been successfully used as tags for fish stock identification around the world. However, few studies using myxozoan tags have been carried out in the Southern Atlantic, a region with complex oceanography that constitutes a potentially suitable scenario for testing the utility of myxozoans as indicators. Its usefulness was tested using six samples of Merluccius hubbsi in two different regions of the Argentine Sea. Generalized linear models were performed to assess the effects of fish size and sex, and year and region of capture and selected using the Information Theoretic approach. Three myxozoan species were recorded: Kudoa rosenbuschi, Myxoproteus meridionalis and Fabespora sp. Results of modelling species individually showed differential capabilities for detecting geographical population structure at different spatial scales, with K. rosenbuschi and Fabespora sp. allowing the discrimination of northern and southern stocks, but Fabespora sp. also as a promissory indicator of intrapopulation sub-structure due to different migratory routes during non-reproductive periods. This work confirms that myxozoans offer a set of suitable markers at different spatial scales, which can be selected individually or in any combination, depending on the geographical extent of the study, constituting tools adaptable to the objectives of further research on fish population structure.

  9. Screening of FSH receptor gene in Argentine women with premature ovarian failure (POF).

    Science.gov (United States)

    Sundblad, Victoria; Chiauzzi, Violeta A; Escobar, Maria Eugenia; Dain, Liliana; Charreau, Eduardo H

    2004-07-30

    Diverse mutations in FSH-receptor (FSHR) gene have been described as possible cause of premature ovarian failure (POF). To investigate the presence of mutations and/or polymorphisms in FSHR gene, DNA from 20 POF, 5 of which were diagnosed as resistant ovary syndrome (ROS), and from 44 controls was isolated from peripheral lymphocytes. The complete coding sequence was analysed by PCR followed by SSCP, direct sequencing or restriction enzyme analysis. No mutations in FSHR gene were identified in the patients studied. The two already described polymorphisms in exon 10, A919G and A2039G, cosegregated in all the homozygous individuals, indicating that FSHR presents two isoforms: Ala307-Ser680 and Thr307-Asn680. OR results suggest that the 919G-2039G allelic variant or the homozygous genotype is not associated to disease risk. In addition, a heterozygous substitution T1022C (Val341Ala) was found in two control subjects. We suggest that mutations in FSHR gene are rare in women with POF in Argentine. Presence of a particular FSHR isoform does not appear to be associated with this disease.

  10. Magnetic and Moessbauer Studies of Quaternary Argentine Loessic Soils and Paleosols

    Energy Technology Data Exchange (ETDEWEB)

    Mercader, R. C., E-mail: mercader@fisica.unlp.edu.ar; Sives, F. R. [Universidad Nacional de La Plata, Departamento de Fisica, IFLP, Facultad de Ciencias Exactas (Argentina); Imbellone, P. A. [Universidad Nacional de La Plata, Instituto de Geomorfologia y Suelos (Argentina); Vandenberghe, R. E. [Ghent University, NUMAT, Department of Subatomic and Radiation Physics (Belgium)

    2005-02-15

    This paper is a review of the current status about the remaining problems that are found in the investigation of the Quaternary Argentine soils and loessic sediments, and the way that Moessbauer studies can assist in solving them. There are two main types of investigations that make use of the magnetic response of the samples to correlate them with information gathered by other methods. On the one hand, there is the stratigraphic and chronological research, which is of importance from the geological and paleontological points of view. On the other hand, the paleoclimatic records, of significance toward a possible model of the past climate, are also studied because of their close relation to the sediments history. However, there is not yet a model that can tell the difference between the modifications due to the climatic conditions at the time when the soils were buried from processes that occurred after burial. Some examples are given that show that Moessbauer studies can be applied with a certain degree of success when cross-checked with magnetic measurements toward understanding the processes that occurred in alluvial B (paleosols) and C horizons (loess) from the eastern part of Buenos Aires Province. Although the application of Moessbauer studies to hydromorphic processes in soils is not straightforward, there are cases in which Moessbauer spectroscopy, if applied properly and correlated with other techniques, is able to characterize the type of iron oxides existing in the materials and thus assist theories about its origin and history.

  11. Science and Society Colloquium

    CERN Multimedia

    Randi, J

    1991-01-01

    Mr. Randi will give an update of his lecture to the American Physical Society on the occasion of his award of the 1989 Forum Prize. The citation said: "for his unique defense of Science and the scientific method in many disciplines, including physics, against pseudoscience, frauds and charlatans. His use of scientific techniques has contributed to refuting suspicious and fraudulent claims of paranormal results. He has contributed significantly to public understanding of important issues where science and society interact". He is a professional magician and author of many books. He worked with John Maddox, the Editor of Nature to investigate the claims of "water with memory".

  12. Man--Society--Technology.

    Science.gov (United States)

    Taxis, Linda A., Ed.

    The 32nd annual American Industrial Arts Association (AIAA) Convention was held in Louisville in 1970. Topics for the AIAA general session addresses were: (1) "Industrial Arts--The Blender Between Social Form and Technical Function," (2) "Technology and Society: Present and Future Challenges," (3) "A Student-Oriented Industrial Arts," (4) "Man:…

  13. Libraries in Society

    DEFF Research Database (Denmark)

    Kristiansson, Michael; Skouvig, Laura

    by Michel Foucault on discourse and power to the introduction of open shelves. Furthermore, the paper discusses current challenges facing the modern public library in coping with openness issues that follow from changes in society and advances in technology. These influences and developments are not least...

  14. Science, technology and society

    CERN Document Server

    Giacomelli, G

    2005-01-01

    We shall discuss some aspects of science and technology, their increasing role in the society, the fast advances in modern science, the apparent decrease of interest of the young generation in basic sciences, the importance of proper science popularization for better public education and awareness in scientific fields.

  15. Education for Jobless Society

    Science.gov (United States)

    Sidorkin, Alexander M.

    2017-01-01

    The advent of societies with low employment rates will present a challenge to education. Education must move away from the discourse of skills and towards the discourse of meaning and motivation. The paper considers three kinds of non-waged optional labor that may form the basis of the future economy: prosumption, volunteering, and self-design.…

  16. Air pollution and society

    OpenAIRE

    Brimblecombe P.

    2010-01-01

    Air pollution is as much a product of our society as it is one of chemistry and meteorology. Social variables such as gender, age, health status and poverty are often linked with our exposure to air pollutants. Pollution can also affect our behaviour, while regulations to improve the environment can often challenge of freedom.

  17. National Down Syndrome Society

    Science.gov (United States)

    ... DONATE HERE The ABLE Act is Now the Law of the Land! LEARN HOW TO PASS ABLE IN YOUR STATE! NDSS Your Way Join Our Independent Fundraising Program! The mission of the National Down Syndrome Society is to be the national advocate for the ...

  18. MARX EMBRYOLOGY OF SOCIETY

    NARCIS (Netherlands)

    WOUTERS, A

    1993-01-01

    This article presents a new interpretation of Marx's dialectical method. Marx conceived dialectics as a method for constructing a model of society. The way this model is developed is analogous to the way organisms develop according to the German embryologist Karl Ernst von Baer, and, indeed, Marx's

  19. Methodology for inspection parametrization of radioprotection at radioactive installations: a research agenda; Metodologia para parametrizacao de inspecoes de radioprotecao em instalacoes radioativas: uma agenda de pesquisa

    Energy Technology Data Exchange (ETDEWEB)

    Filgueiras, Bruno Costa [Comissao Nacional de Energia Nuclear (CNEN), Rio de Janeiro, RJ (Brazil); Sauerbronn, Fernanda F., E-mail: fernanda.sauerbronn@facc.ufrj.b [Universidade Federal do Rio de Janeiro (FACC/UFRJ), RJ (Brazil). Faculdade de Administracao e Ciencias Contabeis

    2011-10-26

    This paper establishes a research agenda based on documental and bibliographic research for radioprotection inspection parametrization at radioactive installations, which is one of the constitutional attributions of Brazilian Nuclear Energy Commission. Such proposal, aiming to guarantee that the evaluation of normative requests of radiation protection generated a quantitative result, useful for various institutions in the safety and regulation areas, bringing relevant contribution for the sector

  20. Tulio Halperin Donghi, Révolution et guerre. Formation d’une élite dirigeante dans l’Argentine Créole

    OpenAIRE

    2014-01-01

    Difficile de mesurer l’événement que constitue la récente traduction de Revolución y guerra de l’historien Argentin Tulio Halperin Donghi pour les sciences humaines francophones. Plus de quarante ans après sa publication initiale aux éditions Siglo XXI et de la parution française de son Histoire Contemporaine de l’Amérique latine, la sortie de l’un des plus grands classiques de l’historiographie argentine est en effet une entreprise éditoriale qu’il faut grandement saluer. Nous tenterons de l...

  1. 15 June 2009 - President of the Argentine Nation C. Fernández visiting ATLAS experimental area.

    CERN Multimedia

    Maximilien Brice

    2009-01-01

    Tirage 1:President of the Argentine Nation, C. Fernández and Minister of Science, Technology and Innovative Production,L. Barañao Tirage 2-8:Arrival greetings Tirage 9-12:Introduction to CERN's activities by Director-General, R. Heuer Tirage 13-15:Signature of the guest book Tirage 16-25:M. Benedetti,R. Heuer and L.Barañao sit for the signature of the Agreement Tirage 26-33: Meeting with Argentinian scientists at CERN

  2. Figurations of Islandness in Argentine Culture and Literature: Macedonio Fernández, Leopoldo Marechal, and César Aira

    Directory of Open Access Journals (Sweden)

    Norman Cheadle

    2009-11-01

    Full Text Available This article explores islandness in the River Plate imaginary. Two modern foundational “island texts” – Thomas More’s Utopia and Daniel Defoe’s Robinson Crusoe – have exerted a formative influence on the Spanish-American colonial imagination, an influence inflected by the particular historical experience of the River Plate region and its dominant city, Buenos Aires. The figuration of islandness is examined in three twentieth-century Argentine novels by Macedonio Fernández, Leopoldo Marechal, and César Aira. The article finds both continuity and evolution in the images of islandness in these novels.

  3. The Argentine Impact Record: Implications for Episodes of Increased Flux during the Last 10 Myr

    Science.gov (United States)

    Harris, R. S.; Schultz, P. H.

    2009-12-01

    Schultz et al. [1-6] have identified 8 impact melt breccia deposits in late Cenozoic strata of the Argentine Pampas. 40Ar/39Ar and fission track dating, combined with sequence and biostratigraphic controls, demonstrate that they represent separate events between 9.24 Ma and 6 ka. These ejecta contain shocked minerals and excavated basement clasts indicative of crater-forming events rather than air blasts. If each involved iron bolides ≤ 50 m across, 8 impacts over ~1.1 x 106 km2 in 10 Myr does not represent an anomaly. However, the melt volumes and distributions observed suggest at least half of the collisions were much larger. One event close to the Miocene-Pliocene boundary (5.28 Ma) appears to have spread microtektites as far as the South Tasman Rise. And three deposits contain meteoritic debris linked to stony and stony-iron asteroids (including HED and angrite-like material) [6,7]. Consequently, one or more increases in the impact flux since the mid-Miocene may be required to account for the Argentine record [8]. Farley et al. [9,10] propose that the disruption of a large main-belt asteroid 8.3 Ma increased the IDP flux in the inner solar system leading to a positive 3He anomaly in late Miocene (~6.8-8.3 Ma) sediments. The anomaly is comparable to the late Eocene (~34.2-36.4 Ma) 3He enhancement attributed to a comet [11] or asteroid [12] shower, which increased both the abundance of IDPs and large asteroids reaching the surface. But Farley et al. discount such a scenario in the late Miocene based on a perceived absence of coincident crater-forming impacts. Preserved ejecta and geochemical signatures, however, indicate the contrary. We suggest that the late Miocene contains at least as rich a record of terrestrial impacts as the late Eocene. The patterns of elevated 3He, main-belt breakups, and significant impact events are very similar through both intervals. Two reported asteroid breakups during the Pliocene and mid-Pleistocene [13,14] also appear to

  4. Practical Pest Management Strategies to Reduce Pesticide Runoff for Argentine Ant (Hymenoptera: Formicidae) Control.

    Science.gov (United States)

    Greenberg, Les; Rust, Michael K; Richards, Jaben; Wu, Xiaoqin; Kabashima, John; Wilen, Cheryl; Gan, Jay; Choe, Dong-Hwan

    2014-12-01

    The purpose of this study was to involve pest management professionals in the design of application techniques and strategies that would be efficacious and also reduce insecticide runoff. Our study involved measuring both the efficacy of treatments for the Argentine ant, Linepithema humile (Mayr), and the concurrent runoff of fipronil and pyrethroids. Two collaborating companies used low-impact protocols for controlling ants while minimizing runoff. Protocol 1 involved bimonthly treatments, while Protocol 2 was monthly. Both protocols involved an initial treatment with a fipronil spray around the foundation. At the garage door-driveway interface, the fipronil application was done as a pin stream for Protocol 1, and as a crack and crevice application in the expansion joint near the garage for Protocol 2. Protocol 1 replaced most pyrethroid sprays with bifenthrin granules placed around bushes and away from the driveway. For the next treatment on day 63, Protocol 1 also included cyfluthrin spray treatments around the house foundation and crack and crevice applications around the edge of the driveway. For the first treatment in Protocol 2, the fipronil spray was supplemented with spot treatments of cyfluthrin. For subsequent Protocol 2 treatments, botanical insecticides were applied. For weeks 1 and 2 posttreatment combined, Protocol 1 had significantly higher reductions in ant numbers compared with Protocol 2. Thereafter there were no significant differences between the protocols. Runoff of bifenthrin from the granules used with Protocol 1 was much lower than in previous trials involving bifenthrin sprays. Day 1 fipronil runoff for Protocol 2 was significantly lower than that for Protocol 1. This difference may be because of the crack and crevice application applied in Protocol 2. Cyfluthrin runoff was minimal for Protocol 2, which involved spot treatments to supplement the fipronil on day 1, or the botanical insecticides for subsequent treatments. Protocol 1 had a

  5. Suspending the next turn as a form of repair initiation: evidence from Argentine Sign Language

    Directory of Open Access Journals (Sweden)

    Elizabeth eManrique

    2015-09-01

    Full Text Available Practices of other-initiated repair deal with problems of hearing or understanding what another person has said in the fast-moving turn-by-turn flow of conversation. As such, other-initiated repair plays a fundamental role in the maintenance of intersubjectivity in social interaction. This study finds and analyses a special type of other-initiated repair that is used in turn-by-turn conversation in a sign language: Argentine Sign Language (Lengua de Señas Argentina or LSA. We describe a type of response termed a ‘freeze-look’, which occurs when a person has just been asked a direct question: instead of answering the question in the next turn position, the person holds still while looking directly at the questioner. In these cases it is clear that the person is aware of having just been addressed and is not otherwise accounting for their delay in responding (e.g., by displaying a ‘thinking’ face or hesitation, etc.. We find that this behavior functions as a way for an addressee to initiate repair by the person who asked the question. The ‘freeze-look’ results in the questioner ‘re-doing’ their action of asking a question, for example by repeating or rephrasing it. Thus we argue that the ‘freeze-look’ is a practice for other-initiation of repair. In addition, we argue that it is an ‘off-record’ practice, thus contrasting with known on-record practices such as saying ‘Huh?’ or equivalents. The findings aim to contribute to research on human understanding in everyday turn-by-turn conversation by looking at an understudied sign language, with possible implications for our understanding of visual bodily communication in spoken languages as well.

  6. Suspending the next turn as a form of repair initiation: evidence from Argentine Sign Language.

    Science.gov (United States)

    Manrique, Elizabeth; Enfield, N J

    2015-01-01

    Practices of other-initiated repair deal with problems of hearing or understanding what another person has said in the fast-moving turn-by-turn flow of conversation. As such, other-initiated repair plays a fundamental role in the maintenance of intersubjectivity in social interaction. This study finds and analyses a special type of other-initiated repair that is used in turn-by-turn conversation in a sign language: Argentine Sign Language (Lengua de Señas Argentina or LSA). We describe a type of response termed a "freeze-look," which occurs when a person has just been asked a direct question: instead of answering the question in the next turn position, the person holds still while looking directly at the questioner. In these cases it is clear that the person is aware of having just been addressed and is not otherwise accounting for their delay in responding (e.g., by displaying a "thinking" face or hesitation, etc.). We find that this behavior functions as a way for an addressee to initiate repair by the person who asked the question. The "freeze-look" results in the questioner "re-doing" their action of asking a question, for example by repeating or rephrasing it. Thus, we argue that the "freeze-look" is a practice for other-initiation of repair. In addition, we argue that it is an "off-record" practice, thus contrasting with known on-record practices such as saying "Huh?" or equivalents. The findings aim to contribute to research on human understanding in everyday turn-by-turn conversation by looking at an understudied sign language, with possible implications for our understanding of visual bodily communication in spoken languages as well.

  7. l'Internet Society

    CERN Multimedia

    CERN

    1997-01-01

    Conference of Vinton "Vint" Gray Cerf in the Intercontinental Hostel. Vinton Gray Cerf (born June 23, 1943) is an American computer scientist who is commonly referred to as one of the "founding fathers of the Internet" for his key technical and managerial role, together with Bob Kahn, in the creation of the Internet and the TCP/IP protocols which it uses. He was also a co-founder (in 1992) of the Internet Society (ISOC) which is intended to both promote the views of ordinary users of the Internet, and also serve as an umbrella body for the technical groups developing the Internet (such as the Internet Engineering Task Force). He served as the first president of the Internet Society from 1992-1995.

  8. Branding Cities, Changing Societies

    DEFF Research Database (Denmark)

    Ooi, Can-Seng

    Societal changes are seldom discussed in the literature on city branding. The time element is important because it highlights the fluctuating reality of society. The city brand message freezes the place but in fact, the city branding exercise is a continuous process. Society emerges too. City...... brands are supposed to accentuate the uniqueness of the city, be built from the bottom-up and reflect the city's identity. This paper highlights three paradoxes, pointing out that city branding processes can also make cities more alike, bring about societal changes and forge new city identities. A city...... branding campaign does not just present the city, it may change the city. The relationships between the branding exercise and the city are intertwined in the evolution of the place....

  9. Connecting Science with Society

    DEFF Research Database (Denmark)

    awareness of the important questions of our society reflected in scientific research and of the answers produced by these research activities. The CRIS2010 conference, entitled “Bringing Science to Society”, therefore seeks to highlight the role of Current Research Information Systems for communicating......CRIS2010, the 10th conference in the bi-annual series organized by euroCRIS, focuses on the connecting role of Current Research Information Systems (CRIS). Aalborg, Denmark where CRIS2010 is held, is located near the intersection of the Northern Sea and Kattegat, a place were not only the waters...... of two seas are exchanged, but also goods and culture. In a similar way, Current Research Information Systems are at the intersection between (publicly funded) research and society. They do not only connect actors, activities and results within the research domain but also play a crucial role in raising...

  10. Civil society sphericules

    DEFF Research Database (Denmark)

    Tufte, Thomas

    2014-01-01

    This article explores the communicative practice of a Tanzanian NGO, Femina. Based on a tripartite model of engagement (Madianou, 2012) integrating speech, action and understanding, and drawing on fieldwork on the communication practices of Femina, I critically assess the forms of civic engagement...... movement and a media initiative. In the context of the growing literature on social networking sites and their affordances, dynamics and structures, the case of Femina illustrates how a civil society sphericule emerges within the dynamic co-evolution of new and old media platforms. The study is furthermore...... an example of the difficult shift in civil society practice, from service provision to an agenda of public service monitoring, social accountability and community engagement....

  11. Evolution, museums and society.

    Science.gov (United States)

    MacFadden, Bruce J

    2008-11-01

    Visitors to natural history museums have an incomplete understanding of evolution. Although they are relatively knowledgeable about fossils and geological time, they have a poor understanding of natural selection. Museums in the 21st century can effectively increase public understanding of evolution through interactive displays, novel content (e.g. genomics), engaging videos and cyberexhibits that communicate to a broad spectrum of society, both within the exhibit halls as well as outside the museum.

  12. Behaviorism and Society

    OpenAIRE

    Krapfl, Jon E.

    2016-01-01

    A probable list of causes for the limited acceptance of behaviorism in our society is identified. This is followed by a summary review of the proposed solutions identified in other papers in this special issue of The Behavior Analyst, most of which relate to either better marketing of either the behavior analytic process or the results achieved as a consequence. One paper proposes a more broad conception of behavior analysis. This paper endorses the solutions identified in previous papers and...

  13. Society and Social Power

    Directory of Open Access Journals (Sweden)

    Janani Harish

    2014-10-01

    Full Text Available Society is the source of immense power. Over the past few centuries humanity has record­ed phenomenal growth in its collective capacity for accomplishment, as reflected in the 12-fold growth in global per capita income since 1800. The remarkable achievements in living standards, longevity, science, technology, industry, education, democracy, human rights, peace and global governance are the result of the exponential development of the capacity of society to harness human energies and convert them into social power for productive purposes. Today, humanity possesses the power and capabilities needed to fully meet the multi-dimensional challenges confronting global society. The source of this energy is people. Human energy is transformed into social power by the increasing reach, frequency and complexity of human relationships. Society is a complex living network of organized relationships between people. Its power issues from channelizing our collective energies in productive ways by means of organizing principles such as coordination, systems, specialization of function, hierarchy of authority, and integration. This immense social power remains largely underutilized. Social science needs to evolve a comprehensive, trans-disciplinary understanding of the roots of social power and the process by which it is generated, distributed and applied. This knowledge is the essential foundation for formulating effective social policies capable of eradicating forever persistent poverty, unemployment and social inequality. This article is based on a series of lectures delivered by the author in the WAAS-WUC course on “Toward a Trans-disciplinary Science of Society” at Dubrovnik on September 1-3, 2014. It traces the development of social power in different fields to show that human and social capital are inexhaustible in potential. The more we harness them, the more they grow. Unleashing, directing, channeling and converting human potential into social

  14. Evolvement of Classification Society

    Institute of Scientific and Technical Information of China (English)

    Xu Hua

    2011-01-01

    As an independent industry, the emergence of the classification society was perhaps the demand of beneficial interests between shipowners, cargo owners and insurers at the earliest time. Today, as an indispensable link of the international maritime industry, class role has changed fundamentally. Start off from the demand of the insurersSeaborne trade, transport and insurance industries began to emerge successively in the 17th century. The massive risk and benefit brought by seaborne transport provided a difficult problem to insurers.

  15. Do Carbamazepine, Gabapentin, or Other Anticonvulsants Exert Sufficient Radioprotective Effects to Alter Responses From Trigeminal Neuralgia Radiosurgery?

    Energy Technology Data Exchange (ETDEWEB)

    Flickinger, John C. [Department of Radiation Oncology, University of Pittsburgh School of Medicine, Pittsburgh, PA (United States); College of Arts and Sciences, University of Pittsburgh, Pittsburgh, PA (United States); Kim, Hyun [Department of Radiation Oncology, University of Pittsburgh School of Medicine, Pittsburgh, PA (United States); Kano, Hideyuki [Department of Neurological Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA (United States); Greenberger, Joel S.; Arai, Yoshio [Department of Radiation Oncology, University of Pittsburgh School of Medicine, Pittsburgh, PA (United States); Pittsburgh Cancer Institute, Pittsburgh, PA (United States); Niranjan, Ajay [Department of Neurological Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA (United States); Lunsford, L. Dade; Kondziolka, Douglas [Department of Neurological Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA (United States); Pittsburgh Cancer Institute, Pittsburgh, PA (United States); Department of Radiation Oncology, University of Pittsburgh School of Medicine, Pittsburgh, PA (United States); Flickinger, John C., E-mail: flickingerjc@upmc.edu [Department of Radiation Oncology, University of Pittsburgh School of Medicine, Pittsburgh, PA (United States); Pittsburgh Cancer Institute, Pittsburgh, PA (United States); Department of Neurological Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA (United States)

    2012-07-15

    Purpose: Laboratory studies have documented radioprotective effects with carbamazepine. We sought to determine whether carbamazepine or other anticonvulsant/neuroleptic drugs would show significant radioprotective effects in patients undergoing high-dose small-volume radiosurgery for trigeminal neuralgia. Methods and Materials: We conducted a retrospective review of 200 patients undergoing Gamma Knife (Elekta Instrument AB, Stockholm, Sweden) stereotactic radiosurgery for trigeminal neuralgia between February 1995 and May 2008. We selected patients treated with a maximum dose of 80 Gy with 4-mm diameter collimators, with no previous microvascular decompression, and follow-up {>=}6 months (median, 24 months; range, 6-153 months). At the time of radiosurgery, 28 patients were taking no anticonvulsants, 62 only carbamazepine, 35 only gabapentin, 21 carbamazepine plus gabapentin, 17 carbamazepine plus other anticonvulsants, and 9 gabapentin plus other anticonvulsants, and 28 were taking other anticonvulsants or combinations. Results: Pain improvement developed post-radiosurgery in 187 of 200 patients (93.5%). Initial complete pain relief developed in 84 of 200 patients (42%). Post-radiosurgery trigeminal neuropathy developed in 27 of 200 patients (13.5%). We could not significantly correlate pain improvement or initial complete pain relief with use of carbamazepine, gabapentin, or use of any anticonvulsants/neuroleptic drugs or other factors in univariate or multivariate analysis. Post-radiosurgery numbness/paresthesias correlated with the use of gabapentin (1 of 36 patients with gabapentin vs. 7 of 28 without, p = 0.017). In multivariate analysis, decreasing age, purely typical pain, and use of gabapentin correlated (p = 0.008, p = 0.005, and p = 0.021) with lower risks of developing post-radiosurgery trigeminal neuropathy. New post-radiosurgery numbness/paresthesias developed in 3% (1 of 36), 5% (4 of 81), and 13% (23 of 187) of patients on gabapentin alone, with age

  16. Validation of the Argentine version of the Memory Binding Test (MBT for Early Detection of Mild Cognitive Impairment

    Directory of Open Access Journals (Sweden)

    Fabian Roman

    Full Text Available ABSTRACT Background: "Forgetfulness" is frequent in normal aging and characteristic of the early stages of dementia syndromes. The episodic memory test is central for detecting amnestic mild cognitive impairment (MCI. The Memory Binding Test (MBT is a simple, easy and brief memory test to detect the early stage of episodic memory impairment. Objective: To validate the Argentine version of the MBT in a Latin American population and to estimate the diagnostic accuracy as a tool for early detection of MCI. Methods: 88 subjects (46 healthy controls and 42 patients with amnestic MCI matched for age and educational level were evaluated by an extensive neuropsychological battery and the memory binding test. Results: A significantly better performance was detected in the control group; all MBT scales were predictive of MCI diagnosis (p<.01. The MBT showed high sensitivity (69% and high specificity (88%, with a PPV of 93% and a NPV of 55% for associative paired recall. A statistically significant difference (c2=14,164, p<.001 was obtained when comparing the area under the curve (AUC of the MBT (0.88 and the MMSE (0.70. Conclusion: The Argentine version of the MBT correlated significantly with the MMSE and the memory battery and is a useful tool in the detection of MCI. The operating characteristics of the MBT are well suited, surpassing other tests commonly used for detecting MCI.

  17. Indicators of Information Society Measurement :

    Directory of Open Access Journals (Sweden)

    Hind Elwy

    2006-09-01

    Full Text Available The indicator of information society describe the infrastructure of information and communication technology ; as well as it’s use and it’s production in different estate of society. The importance economic and social of tic is crescent in modern society. and the presentation of tendency inform above the situation of information society . in this article we want to describe the indicator of tic in Algeria according to librarian’s vision in Mentouri university

  18. Advanced information society (9)

    Science.gov (United States)

    Kamata, Hiroki

    This article discusses the U.S. and European national strategies and policies for information society. Coping with the declining competitiveness in high-tech products and Japanese technological advantages both have been trying hard to strengthen technology base and to deregulate the telecommunications services markets. The U.S. approach in 1980's, unlike its liberalist principle, has been characterized by technological protectlonism and defense-oriented policies. European Communities' approach has been more comprehensive and systematic, investing heavily telecommunication infrastructure, deregulating domestic market, and promoting cooperation of member countries. However, both of these approaches have, so far, been unable to achieve a considerable success.

  19. Disciplining Global Society

    Directory of Open Access Journals (Sweden)

    Tony Evans

    2007-06-01

    Full Text Available One of the puzzles of the current era is the divide between optimists and pessimists on the question of human rights. The prominence of human rights on the international political agenda sustains the optimist’s hopes for the future, while pessimists point to continued and widespread reports of civil, political, economic, social and cultural violations. This article looks at the tensions and apparent contradictions between these two approaches. Following a discussion on the construction of global human rights discourse(s, the article concludes that the pretensions of law act to mask the socioeconomic normative framework that acts to discipline global society.

  20. Disciplining Global Society

    Directory of Open Access Journals (Sweden)

    Tony Evans

    2007-12-01

    Full Text Available One of the puzzles of the current era is the divide between optimists and pessimists on the question of human rights. The prominence of human rights on the international political agenda sustains the optimist’s hopes for the future, while pessimists point to continued and widespread reports of civil, political, economic, social and cultural violations. This article looks at the tensions and apparent contradictions between these two approaches. Following a discussion on the construction of global human rights discourse(s, the article concludes that the pretensions of law act to mask the socioeconomic normative framework that acts to discipline global society.

  1. Afghanistan, state and society

    DEFF Research Database (Denmark)

    Kværnø, Ole

    In June 2007, the RAND Corporation and the Royal Danish Defence College hosted a conference titled “Afghanistan: State and Society, Great Power Politics, and the Way Ahead”. The two-day event, held in Copenhagen, was attended by more than 100 politicians, scholars, academics, and representative...... of both governmental and nongovernmental institutions from more than 20 states. Its theme was to discuss the problems that Afghanistan faces in the wake of the U.S.-led attack on al Qaeda training camps and the Taliban government; examine the challenges confronting the NATO International Security......-encompassing, long-term strategic approach....

  2. Radioprotective effect of geraniin via the inhibition of apoptosis triggered by γ-radiation-induced oxidative stress.

    Science.gov (United States)

    Kang, Kyoung Ah; Lee, In Kyung; Zhang, Rui; Piao, Mei Jing; Kim, Ki Cheon; Kim, Sang Young; Shin, Taekyun; Kim, Bum Joon; Lee, Nam Ho; Hyun, Jin Won

    2011-04-01

    The radioprotective effect of geraniin, a tannin compound isolated from Nymphaea tetragona Georgi var. (Nymphaeaceae), against γ-radiation-induced damage was investigated in Chinese hamster lung fibroblast (V79-4) cells. Geraniin recovered cell viability detected by MTT test and colony formation assay, which was compromised by γ-radiation, and reduced the γ-radiation-induced apoptosis by the inhibition of loss of the mitochondrial membrane potential. Geraniin protected cellular components (lipid membrane, cellular protein, and DNA) damaged by γ-radiation, which was detected by lipid peroxidation, protein carbonyl formation, and comet assay. Geraniin significantly reduced the level of intracellular reactive oxygen species generated by γ-radiation, which was detected using spectrofluorometer, flow cytometer, and confocal microscope after 2',7'-dichlorodihydrofluorescein diacetate staining. Geraniin normalized the superoxide dismutase and catalase activities, which were decreased by γ-radiation. These results suggest that geraniin protects cells against radiation-induced oxidative stress via enhancing of antioxidant enzyme activities and attenuating of cellular damage.

  3. Does amifostine have radioprotective effects on salivary glands in high-dose radioactive iodine-treated differentiated thyroid cancer

    Energy Technology Data Exchange (ETDEWEB)

    Ma, Chao; Wang, Guoming; Zuo, Shuyao [Qingdao University, Department of Nuclear Medicine, Affiliated Hospital, Medical College, Qingdao, Shandong Province (China); Xie, Jiawei [Qingdao University, Medical College, Qingdao (China); Jiang, Zhongxin [Qingdao University, Affiliated Hospital, Medical College, Qingdao (China)

    2010-09-15

    To assess the effects of amifostine on salivary glands in radioactive iodine-treated differentiated thyroid cancer. We searched the MEDLINE, EMBASE and the Cochrane Library for randomized controlled clinical trials which compared the effects of amifostine with those of placebo or acid-stimulating agents. Two randomized controlled clinical trials with a total of 130 patients were included. Both studies had a low risk of bias. There were no statistically significant differences between the effects of amifostine and acid-stimulating agents on the incidence of xerostomia (RR 0.24, 95% CI 0.01 to 9.52), the decrease of scintigraphically measured uptake of {sup 99m}Tc by the parotid (RR 0.30, 95% CI -2.28 to 2.88) or submandibular glands (RR 1.90, 95% CI -1.46 to 5.26) at 12 months, or the reduction in blood pressure (RR 5.00, 95% CI 0.25 to 99.16). Neither of the included trials investigated death from any cause, morbidity, health-related quality of life or costs. The results of two randomized controlled clinical trials suggest that amifostine has no significant radioprotective effects on salivary glands in radioactive iodine treatment of differentiated thyroid cancer. The use of acid-stimulating agents to increase salivation should remain the first choice during radioactive iodine treatment of differentiated thyroid cancer. Patients should also be well informed of the importance of hydration and acid stimulation. (orig.)

  4. Misoprostol-induced radioprotection of Syrian hamster embryo cells in utero from cell death and oncogenic transformation

    Energy Technology Data Exchange (ETDEWEB)

    Miller, R.C.; LaNasa, P.; Hanson, W.R. [Loyola Univ., Maywood, IL (United States)

    1994-07-01

    Misoprostol, a PGE analog, is an effective radioprotector of murine intestine and hematopoietic and hair cell renewal systems. The radioprotective nature of misoprostol was extended to examine its ability to influence clonogenic cell survival and induction of oncogenic transformation in Syrian hamster embryo cells exposed to X rays in utero and assayed in vitro. Hamsters in their 12th day of pregnancy were injected subcutaneously with misoprostal, and 2 h later the pregnant hamsters were exposed to graded doses of X rays. Immediately after irradiation, hamsters were euthanized and embryonic tissue was explanted into culture dishes containing complete growth medium. After a 2-week incubation period, clongenic cell survival and morphologically transformed foci were determined. Survival of misoprostol-treated SHE cells was increased and yielded a dose reduction factor of 1.5 compared to SHE cells treated with X rays alone. In contrast, radiation-induced oncogenic transformation of misoprostol-treated cells was reduced by a factor of 20 compared to cells treated with X rays alone. These studies suggest that misoprostol not only protects normal tissues in vivo from acute radiation injury, but also protects cells, to a large extent, from injury leading to transforming events. 26 refs., 6 figs., 2 tabs.

  5. Hydroacoustical evidence of the expansion of pelagic swarms of Munida gregaria (Decapoda, Munididae) in the Beagle Channel and the Argentine Patagonian Shelf, and its relationship with habitat features

    Science.gov (United States)

    Diez, Mariano J.; Cabreira, Ariel G.; Madirolas, Adrián; Lovrich, Gustavo A.

    2016-08-01

    Squat lobsters are highly diversified and widespread decapods, of which only three species form pelagic swarms. Here we infer the expansion of Munida gregaria populations in the Beagle Channel and the Argentine Patagonian Shelf by means of acoustic surveys of pelagic swarms. We also describe the habitat characteristics in which these swarms occur. Acoustic data was collected during three multidisciplinary scientific cruises on board of the R/V Puerto Deseado during 2009, 2012 and 2014. Despite differences in the environmental conditions between the two surveyed areas, between 2009 and 2014 pelagic swarms increased their occurrence and abundance both in the Beagle Channel and on the Argentine Patagonian Shelf. Towards the end of the studied period, pelagic swarms of M. gregaria occurred in new locations, supporting the notion of a population expansion. Within the Beagle Channel swarm expansions were more marked than on the Patagonian Shelf. We here postulate that M. gregaria expansions occur in association with productive areas of the Argentine continental shelf, such as frontal zones, favoured by the squat lobster phenotypic plasticity that permit to exploit resources in both the neritic and benthic environments. At a regional scale on the Patagonian Shelf, three main groups of pelagic swarms of M. gregaria were clearly associated to respective frontal zones. The information presented here is necessary to understand fluctuations in both distribution and abundance patterns of a key species on the Argentine continental shelf. These fluctuations could be direct or indirect indicators of changes in the ecosystem.

  6. Family in contemporary society

    Directory of Open Access Journals (Sweden)

    Rabije Murati

    2016-01-01

    Full Text Available The family is part of social change and, as such changes and transform into steps with modern trends of society. Family function in a given society is structured according to the overall changes that occur in all areas of social life, not neglecting family life. The contemporary conditions impose requirements that must be met to move forward with the times that follow. In particular, should highlight the social changes that are related to the growth and advancement of the educational and professional standards, which will increase the overall impact on the family and its function. If you're looking for full responsibility of parents in the upbringing of children then it is necessary to see the conditions in which the family lives. For normal education and the rights of children with special meaning the number of members in the (quantity family. The tendency to a higher standard of economic life, a small number of children in the family and it is more than obvious that fewer family members or less have greater opportunity for parents to pay more attention to their children. One of the main roles of family, no matter where they are located in the city, village, developed or developing countries, by all means participate, intermediates and transfers the moral, social and other values in modern life.

  7. Large-Scale Agricultural Management and Soil Meso- and Macrofauna Conservation in the Argentine Pampas

    Directory of Open Access Journals (Sweden)

    José Camilo Bedano

    2016-07-01

    Full Text Available Soil is the most basic resource for sustainable agricultural production; it promotes water quality, is a key component of the biogeochemical cycles and hosts a huge diversity of organisms. However, we are not paying enough attention to soil degradation produced by land use. Modern agriculture has been successful in increasing yields but has also caused extensive environmental damage, particularly soil degradation. In the Argentine Pampas, agriculturization reached a peak with the generalized use of the no-till technological package: genetically modified soybeans tolerant to glyphosate, no-till, glyphosate, and inorganic fertilizers. This phenomenon has been widely spread in the country; the no-till package has been applied in large areas and has been used by tenants in a 60%–70% of cultivated lands. Thus, those who were involved in developing management practices may not be the same as those who will face degradation issues related to those practices. Indeed, most evidence reviewed in this paper suggests that the most widely distributed practices in the Pampas region are actually producing severe soil degradation. Biological degradation is particularly important because soil biota is involved in numerous soil processes on which soil functioning relies, affecting soil fertility and productivity. For example, soil meso- and macrofauna are especially important in nutrient cycling and in soil structure formation and maintenance, and they are key components of the network that links microbial process to the scale of fields and landscapes where ecosystem services are produced. However, the knowledge of the impact of different agricultural managements on soil meso- and macrofauna in Pampas agroecosystems is far from conclusive at this stage. The reason for this lack of definite conclusions is that this area has been given less attention than in other parts of the world; the response of soil fauna to agricultural practices is complex and taxa

  8. The Pacific-Atlantic connection: Biogeochemical signals in the southern end of the Argentine shelf

    Science.gov (United States)

    Garzón, J. E. Cardona; Martínez, A. M.; Barrera, F.; Pfaff, F.; Koch, B. P.; Freije, R. H.; Gómez, E. A.; Lara, R. J.

    2016-11-01

    The Cape Horn Current transports low-salinity waters from the SE Pacific Ocean into the Atlantic, which are transported further north by the Malvinas current. Biogeochemical signals of this connection were studied by characterization of dissolved organic matter (DOM) by determination of dissolved organic carbon (DOC), fluorescent dissolved organic matter (FDOMc), and DOM humification index (HIX). Further, inorganic nutrients, salinity, temperature, stable isotopic composition of particulate organic nitrogen (δ15N) and chlorophyll a (Chla) were measured in the southern end of the Argentine shelf in March 2012. Three water types were characterized: waters of the Beagle Channel (BCW), coastal waters (CW) and oceanic waters (OW). Highest values of ammonium, DOC, FDOMc and HIX were found in BCW, the lowest in OW, suggesting that terrigenous input is a main source of ammonium and refractory carbon, which is supported by a highly significant inverse correlation of these parameters with salinity. In turn, lowest concentrations of nitrate, silicate and phosphate were found in BCW and CW, and highest in OW, with highly significant correlations of these nutrients with salinity, indicating the contribution of the saltier, nutrient-rich Antarctic Circumpolar Current (ACC) to the Pacific-Atlantic connection system. In general there was an inverse distribution pattern between Chla and those nutrients contributed by the ACC, which is consistent with the transition from coastal waters to the low-silicate, high-nitrate, low-chlorophyll, iron-limited setting of the Subantarctic oceanic waters north of the Polar Front. In contrast, in the low-salinity, internal BCW, high values of ammonium, DOC, HIX and FDOM indicate continental inputs, likely including iron complexes, which could have led to the observed high Chla values. δ15N values were positive in the study region, and same as ammonium, reached a maximum in the inner part of the BCW, declining towards OW. This does not support a

  9. CERN & Society launches donation portal

    CERN Multimedia

    Cian O'Luanaigh

    2014-01-01

    The CERN & Society programme brings together projects in the areas of education and outreach, innovation and knowledge exchange, and culture and arts, that spread the CERN spirit of scientific curiosity for the inspiration and benefit of society. Today, CERN & Society is launching its "giving" website – a portal to allow donors to contribute to various projects and forge new relationships with CERN.   "The CERN & Society initiative in its embryonic form began almost three years ago, with the feeling that the laboratory could play a bigger role for the benefit of society," says Matteo Castoldi, Head of the CERN Development Office, who, with his team, is seeking supporters and ambassadors for the CERN & Society initiative. "The concept is not completely new – in some sense it is embedded in CERN’s DNA, as the laboratory helps society by creating knowledge and new technologies – but we would like to d...

  10. Communicating Science to Society

    Science.gov (United States)

    Illingworth, Samuel; Muller, Jennifer; Leather, Kimberley; Morgan, William; O'Meara, Simon; Topping, David; Booth, Alastair; Llyod, Gary; Young, Dominique; Bannan, Thomas; Simpson, Emma; Percival, Carl; Allen, Grant; Clark, Elaine; Muller, Catherine; Graves, Rosemarie

    2014-05-01

    "Nothing in science has any value to society if it is not communicated." So goes the 1952 quote from Anne Roe, the noted twentieth century American psychologist and writer. She went on to say that "scientists are beginning to learn their social obligations", and now over 60 years later there is certainly evidence to support her assertions. As scientists, by communicating our research to the general public we not only better inform the tax payer where their money is being spent, but are also able to help put into context the topical environmental challenges and issues that society faces, as well as inspiring a whole new generation of future scientists. This process of communication is very much a two-way street; by presenting our work to people outside of our usual spheres of contemporaries, we expose ourselves to alternative thoughts and insights that can inspire us, as scientists, to take another look at our research from angles that we had never before considered. This work presents the results and experiences from a number of public engagement and outreach activities across the UK, in which geoscientists engaged and interacted with members of the general public. These include the design and implementation of Raspberry Pi based outreach activities for several hundred high school students; the process of running a successful podcast (http://thebarometer.podbean.com); hosting and participating in science events for thousands of members of the general public (e.g. http://www.manchestersciencefestival.com and http://sse.royalsociety.org/2013); and creating a citizen science activity that involved primary school children from across the UK. In communicating their research it is imperative that scientists interact with their audience in an effective and engaging manner, whether in an international conference, a classroom, or indeed down the pub. This work also presents a discussion of how these skills can be developed at an early stage in the careers of a research

  11. Nuclear Research and Society

    Energy Technology Data Exchange (ETDEWEB)

    Eggermont, G

    2000-07-01

    In 1998, SCK-CEN took the initiative to include social sciences and humanities into its research programme. Within this context, four projects were defined, respectively on sustainability and nuclear development; transgenerational ethics related to the disposal of long-lived radioactive waste; legal aspects and liability; emergency communication and risk perception. Two reflection groups were established, on expert culture and ethical choices respectively, in order to deepen insight while creating exchange of disciplinary approaches of the committed SCK-CEN researchers and social scientists. Within the context of SCK-CEN's social sciences and humanities programme, collaborations with various universities were initiated, teams consisting of young doctorate and post-doctorate researchers and university promotors with experience in interaction processes of technology with society were established and steering committees with actors and external experts were set up for each project. The objectives and main achievements in the four projects are summarised.

  12. Behaviorism and Society.

    Science.gov (United States)

    Krapfl, Jon E

    2016-05-01

    A probable list of causes for the limited acceptance of behaviorism in our society is identified. This is followed by a summary review of the proposed solutions identified in other papers in this special issue of The Behavior Analyst, most of which relate to either better marketing of either the behavior analytic process or the results achieved as a consequence. One paper proposes a more broad conception of behavior analysis. This paper endorses the solutions identified in previous papers and then goes on to propose an even more broad conception of behavior analysis and makes the point that behavior analysis is unlikely to flourish unless behavior analysts understand a good deal more about the cultural and other contextual features of the environments in which they work.

  13. Science, Technology and Society

    Science.gov (United States)

    Bridgstock, Martin; Burch, David; Forge, John; Laurent, John; Lowe, Ian

    1998-03-01

    This book provides a comprehensive introduction to the human, social and economic aspects of science and technology. It examines a broad range of issues from a variety of perspectives, using examples and experiences from around the world. The authors present complex issues, including the responsibilities of scientists, ethical dilemmas and controversies, the Industrial Revolution, economic issues, public policy, and science and technology in developing countries. The book ends with a thoughtful and provocative look toward the future. It features extensive guides to further reading, as well as a useful section on information searching skills. This book will provoke, engage, inform and stimulate thoughtful discussion about culture, society and science. Broad and interdisciplinary, it will be of considerable value to both students and teachers.

  14. Per-operative X-ray radiotherapy: personnel radiation protection in the operating theatre suite; Radiotherapie peroperatoire par rayons X: radioprotection du personnel au bloc operatoire

    Energy Technology Data Exchange (ETDEWEB)

    Lisbona, A.; Josset-Gaudaire, S.; Brunet, G.; Delpon, G. [ICO Centre Rene-Gauducheau, Saint-Herblain (France)

    2011-10-15

    The authors report the radioprotection study required in the exploitation authorization file associated with the putting into service of the Zeiss Meditec Intrabeam system. After having evoked the characteristics of this equipment (power, dose rate, treatment duration) and some characteristics of the building, they report the results of the zoning and workstation study. Two situations have assessed: the operator is present in the operating theatre suite behind a leaded screens, or stands outside of the operating theatre suite. The received dose is assessed on a basis of 50 treatments a year. Dose rate levels comply with personnel radiation protection requirements. Short communication

  15. Randomized phase III trial of postoperative radiochemotherapy {+-} amifostine in head and neck cancer. Is there evidence for radioprotection?

    Energy Technology Data Exchange (ETDEWEB)

    Vacha, P.; Fehlauer, F.; Mahlmann, B.; Marx, M.; Richter, E. [Dept. of Radiation Oncology and Nuclear Medicine, Univ. of Luebeck (Germany); Hinke, A. [WiSP Research Inst., Langenfeld (Germany); Sommer, K. [Dept. of Head and Neck Surgery, Univ. of Luebeck (Germany); Feyerabend, T. [Practice for Radiation Therapy Bonn-Rhein-Sieg, Bonn (Germany)

    2003-06-01

    Purpose: Experimental and clincial data suggest a reduction of radiation-induced acute toxicity by amifostine (A). We investigated this issue in a randomized trial comparing radiochemotherapy (RT + CT) versus radiochemotherapy plus amifostine (RC + CT + A) in patients with head and neck cancer. Patients and Methods: 56 patients with oro-/hypopharynx or larynx cancer (T1-2 N1-2 G3, T3-4 N0-2 G1-3) were randomized to received RC + CT alone or RC + CT + A. Patients were irradiated up to 60 Gy (R0) or 70 Gy (R1/2) and received chemotherapy (70 mg/m{sup 2} carboplatin, day 1-5 week 1 and 5 of radiotherapy). 250 mg amifostine were applied daily before each radiotherapy session. Acute toxicity was evaluated according to the common toxicity criteria (CTC). As for acute xerostomia, patients with laryngeal cancer were excluded from evaluation. Results: 50 patients were evaluable (25 patients in the RC + CT, 25 patients in the RC + CT + A group). Clinical characteristics were well balanced in both treatment groups. Amifostine provided reduction in acute xerostomia and mucositis but had no obvious influence on Karnofsky performance status, body weight, cutaneous side effects, and alopecia. The differences between both groups were statistically significant for acute xerostomia and nonsignificant, but with a trend for mucositis. Conclusions: According to our results, there is a radioprotective effect on salivary glands and a potential effect on oral mucosa by amifostine in postoperative radiotherapy combined with carboplatin. To improve the radio- and chemoprotective effects of amifostine in clinical practice, the application of a higher dose (> 250 mg) seems to be necessary. (orig.)

  16. In vitro metabolism and drug-drug interaction potential of UTL-5g, a novel chemo- and radioprotective agent.

    Science.gov (United States)

    Wu, Jianmei; Shaw, Jiajiu; Dubaisi, Sarah; Valeriote, Frederick; Li, Jing

    2014-12-01

    N-(2,4-dichlorophenyl)-5-methyl-1,2-oxazole-3-carboxamide (UTL-5g), a potential chemo- and radioprotective agent, acts as a prodrug requiring bioactivation to the active metabolite 5-methylisoxazole-3-carboxylic acid (ISOX). UTL-5g hydrolysis to ISOX and 2,4-dichloroaniline (DCA) has been identified in porcine and rabbit liver esterases. The purpose of this study was to provide insights on the metabolism and drug interaction potential of UTL-5g in humans. The kinetics of UTL-5g hydrolysis was determined in human liver microsomes (HLM) and recombinant human carboxylesterases (hCE1b and hCE2). The potential of UTL-5g and its metabolites for competitive inhibition and time-dependent inhibition of microsomal cytochrome P450 (P450) was examined in HLM. UTL-5g hydrolysis to ISOX and DCA in HLM were NADPH-independent, with a maximum rate of reaction (Vmax) of 11.1 nmol/min per mg and substrate affinity (Km) of 41.6 µM. Both hCE1b and hCE2 effectively catalyzed UTL-5g hydrolysis, but hCE2 exhibited ∼30-fold higher catalytic efficiency (Vmax/Km) than hCE1b. UTL-5g and DCA competitively inhibited microsomal CYP1A2, CYP2B6, and CYP2C19 (IC50 values 5g. Factors influencing carboxylesterase activities may have a significant impact on the pharmacological and therapeutic effects of UTL-5g. UTL-5g has the potential to inhibit P450-mediated metabolism through competitive inhibition or time-dependent inhibition. Caution is particularly needed for potential drug interactions involving competitive inhibition or time-dependent inhibition of CYP1A2 in the future clinical development of UTL-5g.

  17. Radioprotective effect of Panax ginseng on the phosphatases and lipid peroxidation level in testes of Swiss albino mice

    Energy Technology Data Exchange (ETDEWEB)

    Kumar M.; Sharma M.K.; Saxena P.S.; Kumar A. [Rajasthan Univ., Jaipur (India)

    2003-03-01

    The Panax ginseng has been used as traditional medicine for past several years among oriental people. The present investigation has been made to assess the radioprotective efficacy of ginseng root extract in the testicular enzymes of Swiss albino mice. The Swiss albino mice were divided into different groups. Ginseng treated group: The animals were administered 10 mg/kg body weight ginseng root extract intraperitoneal (i.p.). Radiation treated group: The animals were exposed to 8 Gy gamma radiation at the dose rate of 1.69 Gy/min at the distance of 80 cm. Combination group: Animals were administered ginseng extract continuously for 4 d and on 4th day they were irradiated to 8 Gy gamma radiation after 30 min of extract administration. The animals from above groups were autopsied on day 1, 3, 7, 14 and 30. Biochemical estimations of acid and alkaline phosphatases and Lipid peroxidation (LPO) in testes were done. In ginseng treated group acid and alkaline phosphatases activity and LPO level did not show any significant alteration. In irradiated animals there was a significant increase in acid phosphatase activity and LPO level. However, significant decline in alkaline phosphatase activity was observed. The treatment of ginseng before irradiation causes significant decrease in acid phosphatase and LPO level and significant increase in alkaline phosphatase activity. One of the cause of radiation damage is lipid peroxidation. Due to lipid peroxidation, lysosomal membrane permeability alters and thus results in release of hydrolytic enzymes. So, an increase in acid phosphatase was noticed after radiation treatment. The alkaline phosphatase activity is associated with membrane permeability and different stages of spermatogenesis. Due to membrane damage and depletion of germ cells of testes after irradiation the enzyme activity was decreased. Ginseng markedly inhibits lipid peroxidation. It acts in indirect fashion to protect radical processes by inhibition of initiation of

  18. The hegemonic construction of technical institutions in the Argentine agriculture: analysis of AAPRESID and AACREA speeches in the last decade

    Directory of Open Access Journals (Sweden)

    María Dolores Liaudat Landivar

    2015-08-01

    Full Text Available This paper seeks to research on a type of organizations that gains relevance in recent decades in the Argentine agricultural world: the "technical organizations". We intend to trace the ideological nature and the aim of hegemonic construction of the two most representative associations: AAPRESID and AACREA. To advance in this way of research we have worked on the analysis of their discourses, using as sources documents the institutional journals, publications and videos, and minutes of the annual conferences. From this analysis we trace three elements: the roots of local and transnational discourses that they promote, the ways to articulate them and the hegemonic construction operations. These elements allow us to show the strategy of AAPRESID and AACREA to become an intellectual and moral authority in our country.

  19. American Society of Nuclear Cardiology

    Science.gov (United States)

    ... much more! class="box-li"> Journal of Nuclear Cardiology Official publication of the American Society of Nuclear Cardiology Clinical Guidelines Procedures, Appropriate Use Criteria, Information Statements ...

  20. Society for Assisted Reproductive Technology

    Science.gov (United States)

    The Society for Assisted Reproductive Technology PATIENTS Patient Information What Is SART? Risks of IVF Third Party Reproduction A Patient's Guide to Assisted Reproductive Technology Frequently Asked ...

  1. Italian and Argentine olive oils: a NMR and gas chromatographic study

    Directory of Open Access Journals (Sweden)

    Segre, Annalaura

    2001-12-01

    Full Text Available High-field Nuclear Magnetic Resonance (NMR spectroscopy and Gas Chromatography (GC were used to analyze 16 monovarietal olive oils obtained from few matched Mediterranean cultivars grown in experimental fields located in Italy and in the Catamarca region of Argentina. The Catamarca region is characterized by extreme pedoclimatic conditions and by a wild spontaneous vegetation. The proposed sampling allows to study the effect of different pedoclimatic conditions on olive oil composition. GC gives the fatty acid profile of olive oil samples. 1H and 13C NMR techniques provide different information: the 1H NMR spectrum allows the measurement of minor components of olive oils such as b-sytosterol, hexanal, trans-2-hexenal, formaldehyde, squalene, cycloartenol and linolenic acid; the 1C NMR spectrum allows to obtain information about glycerol tri-esters of olive oils, i.e., about their acyl composition and positional distribution on glycerol moiety. All the NMR and GC results have been submitted to Linear Discriminant Analysis (LDA and Tree Cluster Analysis (TCA. A careful analysis of the statistical results allows to select the Mediterranean cultivars less affected by the climatic conditions present in the Catamarca region. The selected cultivars produce olive oils which keep their Mediterranean characteristics and which can be proposed as colonizing plants in this wild Argentine region.La espectroscopía de Resonancia Magnética Nuclear de alta resolución (RMN y Cromatografía Gaseosa (CG fueron utilizadas para analizar 16 monovariedades de aceites de oliva, obtenidas de algunos olivares Mediterráneos cultivados contemporáneamente en campos experimentales localizados en Italia y en la región de Catamarca en Argentina. Estas muestras permiten estudiar diferentes condiciones pedoclimáticas en la composición de los aceite de oliva. La CG proporciona el perfil en ácidos grasos de los aceites de oliva y las técnicas RMN 1H y RMN 13C suministran

  2. En torno a la desilusión argentina On Argentine disillusionment

    Directory of Open Access Journals (Sweden)

    Andrés Kozel

    2007-12-01

    its emergence with general social and economic processes?; How can we extract the incidents of this idea?; How can we characterize and classify its main expressions?; How can we think about the global meaning of this ideological and political process? The general exposition of the research is focused on showing that the topic of the failure acquired its decisive attributes during the first half of the 20th century, through a complex dynamic, comprised of diverse channels which should be captured in their specificity, although without losing sight of the more general movement of which they form a part: seen globally, this movement contributed to the erosion of an entire ideological-cultural configuration, which I call "argentine illusion". The backdrop of the process was none other than the growing social complexity, the greater and more dissonant discursive diversification (Tulio Halperín and the profound hegemony crisis which the country experienced throughout the period.

  3. Structure, composition and metagenomic profile of soil microbiomes associated to agricultural land use and tillage systems in Argentine Pampas.

    Science.gov (United States)

    Carbonetto, Belén; Rascovan, Nicolás; Álvarez, Roberto; Mentaberry, Alejandro; Vázquez, Martin P

    2014-01-01

    Agriculture is facing a major challenge nowadays: to increase crop production for food and energy while preserving ecosystem functioning and soil quality. Argentine Pampas is one of the main world producers of crops and one of the main adopters of conservation agriculture. Changes in soil chemical and physical properties of Pampas soils due to different tillage systems have been deeply studied. Still, not much evidence has been reported on the effects of agricultural practices on Pampas soil microbiomes. The aim of our study was to investigate the effects of agricultural land use on community structure, composition and metabolic profiles on soil microbiomes of Argentine Pampas. We also compared the effects associated to conventional practices with the effects of no-tillage systems. Our results confirmed the impact on microbiome structure and composition due to agricultural practices. The phyla Verrucomicrobia, Plactomycetes, Actinobacteria, and Chloroflexi were more abundant in non cultivated soils while Gemmatimonadetes, Nitrospirae and WS3 were more abundant in cultivated soils. Effects on metabolic metagenomic profiles were also observed. The relative abundance of genes assigned to transcription, protein modification, nucleotide transport and metabolism, wall and membrane biogenesis and intracellular trafficking and secretion were higher in cultivated fertilized soils than in non cultivated soils. We also observed significant differences in microbiome structure and taxonomic composition between soils under conventional and no-tillage systems. Overall, our results suggest that agronomical land use and the type of tillage system have induced microbiomes to shift their life-history strategies. Microbiomes of cultivated fertilized soils (i.e. higher nutrient amendment) presented tendencies to copiotrophy while microbiomes of non cultivated homogenous soils appeared to have a more oligotrophic life-style. Additionally, we propose that conventional tillage systems may

  4. Acupuncture in modern society.

    Science.gov (United States)

    Vanderploeg, Kristin; Yi, Xiaobin

    2009-03-01

    For at least 2,500 years, acupuncture has been an integral part of traditional Chinese medicine. However, recently as more people in western countries are diagnosed with chronic disease poorly treated with modern medical therapies, many are turning to acupuncture and other forms of alternative medical treatments. Based on the theory of harmonious flowing qi being the basis of good health, acupuncture focuses on restoring qi by manipulation of the complementary and opposing elements of yin and yang. However, in the modern medical community we struggle to with the concept of qi, given a lack of anatomic and histological evidence supporting its existence. However, with the surge in public interest in acupuncture, the scientific community begun heavy investigation of acupuncture's efficacy, as well as the physiologic basis behind it. Thus far, evidence supports the use of acupuncture in post-operative nausea and vomiting, postoperative dental pain, chronic pain conditions such as lower back pain, and possibly also such psychologic conditions as addiction. It is possible that by affecting afferent nerve signaling, acupuncture may influence the release of endogenous opioids to promote pain relief. This effect may be augmented by release of ACTH and cortisol, as well as through down-regulation of signaling through pain fibers. When treating patients who may utilize alternative forms of medicine, it is important that medical practitioners be educated in regards to the basic fundamental beliefs behind acupuncture, as well as the scientific evidence supporting its use and revealing its efficacy. The purpose of this review is to give western trained physicians exposure to history, basic knowledge and its clinical applications of acupuncture to accommodate accelerating interests in acupuncture in modern society.

  5. Emerging Artificial Societies Through Learning

    NARCIS (Netherlands)

    Gilbert, N.; Besten, M.; Bontovics, A.; Craenen, B.G.W.; Divina, F.; Eiben, A.E.; Griffioen, R.; Hévízi, G.; Lõrincz, A.; Paechter, B.; Schuster, S.; Schut, M.C.; Tzolov, C.; Vogt, P.; Yang, L.

    2006-01-01

    The NewTies project is implementing a simulation in which societies of agents are expected to develop autonomously as a result of individual, population and social learning. These societies are expected to be able to solve environmental challenges by acting collectively. The challenges are intended

  6. The governance of cooperative societies

    Directory of Open Access Journals (Sweden)

    Yaiza Juanes Sobradillo

    2005-12-01

    Full Text Available The present work aims to expose the appropriate legislation for cooperative societies to which Article 129 of the Spanish Constitution refers, deepen the analysis of the organs of management and control based on the Spanish and Basque Laws on Cooperatives and the Statute for the European Cooperative Societies.

  7. Chinese Women Lawyers Society Established

    Institute of Scientific and Technical Information of China (English)

    1994-01-01

    ON November 12, 1993, the Chinese Women Lawyers Society was established in Beijing. The more than 10,000 women lawyers in the country were excited to have their own organization. Xu Weihua, secretary-general of the society and a lawyer working in the All-China Women’s Federation, said: "The society’s establishment will promote the participation of

  8. Making the Good Society Work

    Science.gov (United States)

    Field, John

    2010-01-01

    Everyone is talking about civil society. Perhaps it's the election, and the shock of seeing more voters at the polling booths than anyone had expected. Now David Cameron's idea of a "big society" is being translated into some early policy measures. Does today's debate have anything to do with adult learning? The author believes that the…

  9. Education in the Information Society

    Directory of Open Access Journals (Sweden)

    Octavia-Luciana Porumbeanu

    2007-01-01

    Full Text Available This article approaches the fundamental role which education has in the information society. The continuous evolution of information and communication technologies requires that all citizens have the necessary skills have to use these technologies and to access information for efficient individual functioning in the information society. In this context, the information literacy programmes have a growing importance.

  10. Public Libraries in postindustrial societies

    DEFF Research Database (Denmark)

    Elbeshausen, Hans

    2015-01-01

    The article’s focus is on how public libraries are affected by structural changes in the wake of the transition to the knowledge society. Their attempts to match the knowledge society are illustrated by processes of sensemaking and sensegiving made in public libraries in Canada, the UK and Denmark....

  11. Colleges Enter the Information Society.

    Science.gov (United States)

    Current Issues in Higher Education, 1983

    1983-01-01

    The implications for higher education of the U.S. transformation from an industrial to an information society are discussed in six papers. Russell Edgerton provides an overview in "Entering the Information Society: An Introduction." In "The Computer: An Enabling Instrument," Louis Robinson considers the current era of the personalization of the…

  12. What is the Knowledge Society?

    Directory of Open Access Journals (Sweden)

    Marin Dinu

    2008-02-01

    Full Text Available This study sets out to establish conceptual delimitations, more concordant to the theoretical acquisitions with regard to the knowledge society. The author considers it opportune to situate in the center of the definition of the concept of knowledge society the problem of prevalence in the typology of resources. Thus, the knowledge society appears as a form of organization in which scientific knowledge predominates, be that informatics as well. The concordances of essence are discovered through the discerning of the functional relationship knowledge society – global society. In the spectrum of meanings specific to this highway of post-postmodernist configuration of the world, the priorities of the project of the second modernity – the paradigmatic matrix of globalization – are approached. In fact, the study argues in favor of refocusing globalization on the humane, on its distinctive values which substantiate and lend sense to the evolutions of the world. Postreferentiality is the rational expression of humanity coming back to itself.

  13. The Argentine electric market indicative planning. The transport systems reference guides; Planificacion indicativa del mercado electrico argentino. Las guias de referencia de los sistemas de transporte

    Energy Technology Data Exchange (ETDEWEB)

    Nizovoy, Jorge Alberto; Puleri, Cesar Anibal [Transener S.A., Buenos Aires (Argentina)]. E-mail: Jorge.Nizovoy@transx.com.ar

    2001-07-01

    This work describes the foreseen tool in the Argentine electric market to guide the users regarding transport systems probable evolution, whereas they have to make inversion decisions in order to enlarge the power transportation networks. The Transportation System Reference Guides constitute such tools. Besides referring to its contents and experiences that have guided to improvements on its edition process, the work approaches aspects of the Argentine electric system development, which illustrate the challenger context on which they have been accomplishing and the obtained knowledge from comparison between what has been really accomplished and what has been proposed by the guides. For this, it is used the Transener S.A. company private experience by means of real examples from its seven published Reference Guides.

  14. Paperless or vanishing society

    Science.gov (United States)

    Turner Luke, Joy

    2002-06-01

    In the 1940s color photography became available and within a few years, extremely popular. As people switched from black and white photographs made with the old metallic silver process to the new color films, pictures taken to record their lives and families began a slow disappearing act. The various color processes, coupled with the substrates they were printed on, affected their longevity, but many color photographs taken from the late 1950s through the 1970s, and even into the 1980s, faded not only when exposed to the light, but also when stored in the dark. Henry Wilhelm's excellent book 'The Permanence and Care of Color Photographs' documents this history in detail. Today we are making another transition in the storage of pictures and information. There are questions about the longevity of different types of digital storage, and also of the images printed by various types of inkjet printers, or by laser printers using colored toners. Very expensive and very beautiful works of art produced on Iris printers are appearing in art exhibitions. Some of these are referred to as Giclee prints and are offered on excellent papers. Artists are told the prints will last a lifetime; and if by change they don't it is only necessary to make another print. Henry Wilhelm has begun to test and rate these images for lightfastness; however, his test method was developed for examining longevity in colored photographs. It is of interest to find out how these prints will hold up in the tests required for fine art materials. Thus far companies producing digital inks and printers have not invested the time and money necessary to develop an American Society for Testing and Materials (ASTM) standard method for evaluating the lightfastness of digital prints. However, it is possible to use ASTM D 5383, Standard Practice for Visual Determination of the Lightfastness of Art Materials by Art Technologists, to pinpoint colors that will fade in a short time, even though the test is not as

  15. Všeobecné volby v Argentině 2015: analýza průběhu a dopadů

    OpenAIRE

    2015-01-01

    This bachelor thesis deals with the general (presidential and parliamentary) election in Argentina in 2015. Its aim is to analyse the progress and the impacts of the election. In the first chapter the thesis deals with the issue of presidential government in theory. It describes the various issues and questions which may arise from the presidential system of government. In the second chapter the thesis describes the Argentine political system from its historical beginnings, through constituti...

  16. Radio-protective effect of vitamin E on spermatogenesis in mice exposed to γ-irradiation: a flow cytometric study

    Institute of Scientific and Technical Information of China (English)

    C.Songthaveesin; J.Saikhun; Y.Kitiyanant; K.Pavasuthipaisit

    2004-01-01

    Aim: To investigate the effect of vitamin E on the radioprotection of spermatogenesis and chromatin condensation of spermatozoa during passage through the epididymis in mice exposed to irradiation. Methods: Adult outbred male ICR mice were orally administered natural vitamin E (VE,D-a-tocopheryl acetate) at 400 IU/kg for 7 days before exposure to 1 Gy of y-irradiation. The animals were sacrificed at day 1,7,14,21, 28, 35 and 70 post-irradiation (IR) and the percentage of testicular germ cells and epididymal sperm chromatin condensation was analyzed using flow cytometry. Results: Serum D-a-tocopheryl acetate levels were 47.4±3.2μg/dL in the treatedgroup, yet it could not be detected in the control group. The testicular weight of irradiated mice pretreated with VE+IR was significantly (P<0.05) higher than that of those without VE treatment (IR) at day 14 and 21 post-irradiation. The percentage of primary spermatocytes (4C) in the VE+IR group was comparable to the controls but significantly (P<0.05) higher than those in the IR group from day 7 to 35 post-irradiation. The percentage of round spermatids (1C) in the VE+IR group was also significantly (P<0.05) higher than those in the IR group at day 28 postirradiation. The primary spermatocytes:spermatogonia ratio in the IR group was significantly (P<0.05) declined at day 7 to 35 post-irradiation when compared to the VE+IR and control groups. The round spermatid:spermatogonia ratio in the VE+IR group was significantly (P<0.05) higher than that of the IR group at day 14 and 28 post-irradiation.The chromatin condensation of epididymal spermatozoa measured by propidium iodide uptake was not affected by 1 Gy of γ-irradiation. Conclusion: The administration of VE prior to irradiation protects spermatogenic cells fromradiation. (Asian J Androl 2004 Dec; 6: 331-336)

  17. Radioprotective properties of some heterocyclic nitrogenous compounds against spectral modifications in hemoglobin of x-irradiated mice; Proprietes radioprotectrices de certains composes heterocycliques azotes sur les modifications spectrales de l'hemoglobine de souris irradiee

    Energy Technology Data Exchange (ETDEWEB)

    Roushdy, H.; Pierotti, T.; Polverelli, M. [Commissariat a l' Energie Atomique, Grenoble (France). Centre d' Etudes Nucleaires

    1969-07-01

    Imidazole and benzimidazole are known for their radioprotective action. In this work, authors have studied the radioprotective action of these compounds on visible and ultra-violet hemoglobin absorption spectra obtained from mice after in vivo X-irradiation. Results compared to those obtained with cysteamine show: 1- a possible pharmacological action of the heterocyclic nitrogenous compounds on the {alpha} and {beta} bands (540 and 580 m{mu}). 2 - a significative variation of the ratio of the optical densities (580/540) after irradiation with hemoglobin of non and radio-protected mice. However, following a real drop of absorption maxima, the twenty-fifth day after irradiation, normal optical densities of each band are found again. A physico-chemical study would be necessary to understand the hemoglobin transformation after irradiation and perhaps, its possible radioprotection. (authors) [French] Les proprietes radioprotectrices de l'imidazole et du benzimidazole etant deja connues, les auteurs ont etudie l'action de ces produits sur les spectres d'absorption de l'hemoglobine dans le visible et le proche ultra-violet apres une irradiation in vivo de souris a dose letale. L'action de ces produits comparee a celle de la cysteamine utilisee dans les memes conditions a permis de constater: 1- l'action pharmacologique probable des heterocycles azotes sur les bandes {alpha} et {beta} situees a 540 et 580 m{mu}; 2 - qu'avec et sans radioprotecteurs, les modifications spectrales se traduisaient par des variations du rapport d'intensite d'absorption existant entre les bandes a 540 et 580 m{mu}. Toutefois, apres une chute des maxima d'absorption, ceux-ci retournent aux valeurs normales le vingt-cinquieme jour apres irradiation. Une etude physicochimique complementaire de l'hemoglobine permettrait de definir la nature exacte du changement apres irradiation et peut-etre son eventuelle radioprotection. (auteurs)

  18. Violence in society

    Directory of Open Access Journals (Sweden)

    António Pedro de Andrade Dores

    2014-07-01

    Full Text Available The recent interest in the sociology of violence has arisen at the same time that western societies are being urged to consider the profound social crisis provoked by global financial turmoil. Social changes demand the evo- lution of sociological practices. The analysis herein proposed, based on the studies of M. Wieviorka, La Violence (2005, and of R. Collins, Violence: A Micro-sociological Theory (2008, concludes that violence is subject to sociological treatments cen- tered on the aggressors, on the struggles for power and on male gender. There is a lack of connection between prac- tical proposals for violence prevention and the sociol- ogy of violence. It is accepted that violence as a subject of study has the potential, as well as the theoretical and social centrality, to promote the debate necessary to bring social theory up to date. This process is more likely to oc- cur in periods of social transformation, when sociology is open to considering subjects that are still taboo in its study of violence, such as the female gender and the state. The rise of the sociology of violence confronts us with a dilemma. We can either collaborate with the construc- tion of a sub discipline that reproduces the limitations and taboos of current social theory, or we can use the fact that violence has become a “hot topic” as an opportunity to open sociology to themes that are taboo in social the- ory (such as the vital and harmonious character of the biological aspects of social mechanisms or the normative aspects of social settings. ResumenEl interés reciente en la sociología de la violencia ha surgido al mismo tiempo que las sociedades occidenta- les están requiriendo considerar la profunda crisis social provocada por la agitación financiera global. Los cambios sociales demandan la evolución de las prácticas socioló- gicas. El análisis aquí expuesto, basado en los estudios de M. Wieviorka, La Violence (2005, and of R. Collins

  19. Comparative leaf anatomy in argentine Galactia species Anatomía comparada de hoja en especies argentinas de Galactia

    Directory of Open Access Journals (Sweden)

    G. M. Tourn

    2009-07-01

    Full Text Available A comparative study of anatomical characters of the leaves of argentine species of Genera Galactia was carried out in order to evaluate their potential value in Taxonomy. In Argentine 14 species and some varieties from Sections Odonia and Collaearia can be found. Section Odonia: G. benthamiana Mich., G. dubia DC., G. fiebrigiana Burkart var. correntina Burkart, G. glaucophylla Harms, G. gracillima Benth., G. latisiliqua Desv., G. longifolia (Jacq. Benth., G. marginalis Benth., G. striata (Jacq. Urban, G. martioides Burkart, G. neesi D. C. var. australis Malme, G. pretiosa Burkart var. pretiosa, G. texana (Scheele A. Gray and G. boavista (Vell. Burkart from Section Collaearia. The characterization of sections is mainly based on reproductive characters, vegetative ones (exomorphological aspects are scarcely considered. The present paper provides a description of anatomical characters of leaves in argentine species of Galactia. Some of them, may have diagnostic value in taxonomic treatment. Special emphasis is placed on the systematic significance of the midvein structure. The aim of the present study, covering 10 species (named in bold, is a to add more data of leaf anatomy characters, thus b to evaluate the systematic relevance and/ or ecological significance.Se realizó un estudio comparativo de la anatomía foliar de especies argentinas del género Galactia (Fabaceae, a fin de evaluar su potencial en taxonomía. En la Argentina se reconocen 14 especies (con algunas variedades, 13 de la sección Odonia -G. benthamiana Mich., G. fiebrigiana Burkart var. correntina Burkart , G. gracillima Benth., G. latisiliqua Desv., G. marginalis Benth., G. striata (Jacq. Urban y G. texana (Scheele A. Gray, G. dubia DC., G. glaucophylla Harms, G. longifolia (Jacq. Benth., G. martioides Burkart, G. neesi DC. var. australis Malme, G. pretiosa Burkart var. Pretiosa- y G. boavista (Vell. Burkart de la sección Collaearia (Burkart, 1971. Los estudios se realizaron en

  20. Phoenix Society for Burn Survivors

    Science.gov (United States)

    ... Medical Professionals Phoenix Society is the leader in connecting the burn recovery community and creating resources for survivors. Since 1977, we have partnered with survivors, families, health care professionals, burn centers, and the fire ...

  1. Documentation in an information society

    OpenAIRE

    Bawden, D.

    2004-01-01

    The contributions of the theories and practices of “documentation”, located with the library/information disciplines, to the development of information society are real, but limited. The scope for further input is considerable.

  2. The Ambivalences of Civil Society

    Directory of Open Access Journals (Sweden)

    Henrik Kaare Nielsen

    2008-07-01

    Full Text Available This article discusses the conceptual heterogeneity in the field of ‘civil society’ in the light of a distinction between positions that reflect civil society as a democratic-emancipatory category and positions that consider civil society from the perspective of the state: as an instrumental resource for the technocratic planning of the competitive nation state.The article discusses the implications and perspectives in these two different strategic scenarios for conceptualizing civil society. The argument is made that civil society in relation to democratic citizenship should basically rather be understood as a concept for specific, communicative principles for institutionalizing societal relations and organizing public experience than as an overall concept for third sector organizations.

  3. American Society for Dermatologic Surgery

    Science.gov (United States)

    ... work in your practice Promote your practice with marketing tools from the ASDS Branding Campaign. Free and ... new clinical research projects through its Cutting Edge Research Grant program. Learn ... methods. Copyright © 1971–2016. American Society for Dermatologic Surgery ( ...

  4. Science in Society in Europe

    DEFF Research Database (Denmark)

    Mejlgaard, Niels; Bloch, Carter Walter

    2012-01-01

    This paper introduces a special section of Science and Public Policy on science in society in Europe. Based on extensive data collected for the Monitoring Policy and Research Activities on Science in Society in Europe (MASIS) project, contributions to this special section explore pertinent issues...... related to the location, role and responsibility of science across EU member states and associated countries. By developing analytical typologies and classifying countries, the collection of papers provides a novel and detailed picture of Europe. It reveals considerable variation regarding...... the interactions of science and society at the national level, and it offers a platform for international learning. The identification of patterns and trends concerning the place of science in society may also feed into emerging European discussions about ‘responsible research and innovation’....

  5. American Society of Clinical Oncology

    Science.gov (United States)

    ... of Interest Mobile App Privacy Policy Privacy Policy Social Media Policy Sponsor Policy Terms of Use American Society of Clinical Oncology ASCO Annual Meeting Register and Reserve Your Hotel June 2-6, 2017 | Chicago, Illinois Hotel Reservation & ...

  6. [Dentist in an information society].

    Science.gov (United States)

    van Cuilenburg, J J

    1990-02-01

    Many commentators say that at present we are living in an information society, a society in which the main sources of national income are communication and information. This article aims at the question how the dentist's practice will be influenced by the information society. The dentist's role in the information society is described as an information broker between the dental science and the public, the patients. In that role the dentist is confronted with two developments, i.e. 'information overload' and 'rising expectations as to the possibilities of medical help'. The article concludes with a plea for 'good health education'. Against the background of the developments at the side of the public 'good health education' is not to be understood as 'more health information' for the public, but as 'more quality in health information'.

  7. The Engineering Societies & Continuing Education.

    Science.gov (United States)

    Professional Engineer, 1979

    1979-01-01

    Gives a description of what the major engineering societies (ASCE, ASME, AICHE, and IEEE) are doing in the area of continuing education. The description includes the short courses, their costs, duration, type and scope of the content. (GA)

  8. Society for Reproductive Endocrinology and Infertility

    Science.gov (United States)

    ... affiliated society to the American Society for Reproductive Medicine . Below are links to publications authored by ASRM and its affiliated societies. Latest Additions: Diagnostic Testing for Male Factor Infertility Robotic surgery The Intrauterine Device (IUD): A Long-acting ...

  9. ON WOMEN’S CULTURAL PATRIMONY IN THE ARGENTINE REPUBLIC: THEORETICAL PERSPECTIVES AND METHODOLOGICAL APPROACHES

    Directory of Open Access Journals (Sweden)

    Cecilia Lagunas

    2014-08-01

    Full Text Available This paper analyses the process of development of gender and women’s studies in public universities in Argentina, from their inception in the 1970s to their expansion throughout the 1980s and beginning of the 1990s. This accounts for more than 20 years of research and other contributions from the perspective of feminist theory to forge a more equal and just society, in which men and women rethink their roles within their private lives and in the exercise of their professional lives. This includes thinking about new identities – gender diversity – according to their felt and practiced sexuality, so as to include difference in the universe of heterosexual human practices.

  10. Abortion in a just society.

    Science.gov (United States)

    Hunt, M E

    1993-01-01

    A female Catholic theologian imagines a just society that does not judge women who decide to undergo an abortion. The Church, practitioners, and the courts must trust that women do make person-enhancing choices about the quality of life. In the last 15 years most progress in securing a woman's right to abortion has been limited to white, well-educated, and middle or upper middle class women. A just society would consider reproductive options a human right. Abortion providers are examples of a move to a just society; they are committed to women's well-being. There are some facts that make one pessimistic about achieving abortion in a just society. The US Supreme Court plans to review important decisions establishing abortion as a civil right. Further, some men insist on suing women who want to make their own reproductive decisions--an anti-choice tactic to wear away women's right to reproductive choice. Bombings of abortion clinics and harassment campaigns by anti-choice groups are common. These behaviors strain pro-choice proponents emotionally, psychically, and spiritually. Their tactics often lead to theologians practicing self-censorship because they fear backlash. Abortion providers also do this. Further, the reaction to AIDS is that sex is bad. Anti-abortion groups use AIDS to further their campaigns, claiming that AIDS is a punishment for sex. Strategies working towards abortion in a just society should be education and persuasion of policymakers and citizens about women's right to choose, since they are the ones most affected by abortion. Moreover, only women can secure their rights to abortion. In a just society, every health maintenance organization, insurance company, and group practice would consider abortion a normal service. A just society provides for the survival needs of the most marginalized.

  11. Radioprotection guidelines to the elaboration of a specific standard for the licensing of radioactive facilities on the practice of oil and gas well logging

    Energy Technology Data Exchange (ETDEWEB)

    Gomes, Rogerio dos Santos; Gomes, Joana D' Arc Ramos Lopes; Costa, Mara Lucia de Lara, E-mail: rogeriog@cnen.gov.br, E-mail: jlopes@cnen.gov.br, E-mail: mara@cnen.gov.br [Comissao Nacional de Energia Nuclear (CNEN), Rio de Janeiro, RJ (Brazil); Miranda, Marcia Valeria F.E. Sa, E-mail: mvaleria@cnen.gov.br [Centro Regional de Ciencias Nucleares (CRCN-NE/CNEN-PE), Recife, PE (Brazil)

    2011-07-01

    The regulatory process in oil and gas well logging has shown the need for specific standard for the issuance of a license authorizing the use of sealed sources in well logging activities, in order to guarantee the quality of many factors from the point of view of radiation protection. Currently, have been used only generic radiation protection standards, but are not comprehensive or technically suitable for a well logging licensing purpose. The lack of a specific standard for licensing in radioactive well logging operations in Brazil, weakens the nuclear regulatory body in your aim of regulate and licensing the activity. This work establish, as main objective, a guideline for the future Brazilian radioprotection code in well logging operations, presenting relevant aspects not covered by genetic radiation protection standards. (author)

  12. A Comparative Study on the Life-Saving Radioprotective Effects of Vitamins A, E, C and Over-the-Counter Multivitamins

    Directory of Open Access Journals (Sweden)

    Mortazavi S. M. J.

    2015-06-01

    Full Text Available Introduction: Oral intake of vitamins which present antioxidant characteristics can protect living organisms against oxidative damage caused by exposure to ionizing radiation. It was previously reported that administration of high levels of vitamin C can lead to increased DNA damage through production of hydroxyl radicals from hydrogen peroxide by the Fenton reaction. However, our early experiments did not confirm this hypothesis. The main goal of this study was to determine if high doses of Vit C can show life-saving radioprotective effects. Materials and Methods: Phase I: Seventy two male Balb/c mice weighing 20-25g were randomly divided into six groups of 12 animals each. Group I; Vit E for five days, Groups II and III; Vit C and Vit A. Group 4; all three vitamins. Group V; an over-the-counter multivitamin. Group VI; none of the above. Phase II: 120 male BALB/c mice weighing 20-25g were randomly divided into 12 groups of 10 each. Group I; Vit A for five days. Groups II-IV; Vit C 200 mg/kg, 400 mg/kg, 800 mg/kg, respectively. Group V-VII; Vit E at daily doses of 200 iu/kg, 400 iu/kg, 800 iu/kg, respectively. Group VIII and IX; all three vitamins at low and high doses, respectively. Group X; an over-the-counter multivitamin. Group XI; controls group and Group XII; received pure olive oil. All animals (Phases I and II were exposed to a lethal dose of gamma rays and the survival rates of the animals were monitored and recorded continuously for 16 days after exposure. Results: Phase I: 14 days after irradiation the survival rate for control group was 33.33%, while the survival rates for the 1st to 5th groups were 45.45%, 81.81%, 50%, 57.14%, and 9.09% , respectively. Phase II: The survival rates in the control group and the group that only received pure olive oil, were 50% and 60%, respectively. Survival rate in the animals received Vit C at daily doses of 200 mg/kg, 400 mg/kg, 800 mg/kg, were 90%, 90% and 90%, respectively. Log rank (Mantel

  13. Radioprotective Effect of Propolis on the Blood Corpuscle of a Mouse by SEM after X-irradiation on the Whole Body

    Energy Technology Data Exchange (ETDEWEB)

    Ji, Tae Jeong [Dept. of Radiological Science, Kaya University, Kimhae (Korea, Republic of)

    2008-03-15

    After x-ray 5 Gy radiation on the whole body of a mouse using a linear accelerator, its leucocyte, erythrocyte, and platelet were observed by SEM. Also, after injecting propolis into the abdominal cavity, the radio-protective effect of blood corpuscles was studied. The observation of micromorphology in blood corpuscles revealed that the number of leukocyte, erythrocyte, and thrombocyte decreased in the experimental group and the lump got together in blood corpuscles after 10 and 20 days. In RBC, crack or break on the surface and poikilosperocytes were observed. In the irradiation group, the size of leucocytes was smaller than that in control group and the number of villus at the verge substantially decreased. The blood corpuscles in the propolis group, however, had the similar results to control group.

  14. Modelling American trypanosomiasis in an endemic zone: application to the initial spread of household infection in the Argentine Chaco.

    Science.gov (United States)

    Fabrizio, M C; Schweigmann, N J; Bartoloni, N J

    2014-12-01

    The complex dynamics of Trypanosoma cruzi infection (Chagas disease) involves different actors and multiple transmission routes. Based on the information currently available, here, we propose a new and more comprehensive model to better understand the dynamics of the infection. This mathematical deterministic model was formulated considering: (i) the three clinical forms in humans: acute, chronic indeterminate and chronic with determinate pathology, (ii) the three main modes of transmission in the human population: vector-borne, congenital and transfusional, (iii) populations of triatomines and dogs as the main domestic reservoirs of T. cruzi and (iv) open populations. A numerical simulation was also performed to estimate the initial spread of the infection in a typical rural household in the endemic zone of the Argentine Gran Chaco. We also analysed the incidence of infected individuals corresponding to each of the three species (humans/triatomines/dogs) over times until the appearance of the first case in the other species. The model predicts that, in the absence of control measures, a few infected individuals are sufficient for the establishment and dispersion of the infection in all the inhabitants of the household. The model proposed and the results obtained allow describing the consequences of the presence of infected individuals in any of the three species considered in the dynamics and the output of the infection.

  15. Relationship Between Beak Morphological Variables and Body Size and Mantle Length of Male and Female Argentine Shortfin Squid (Illex argentinus)

    Institute of Scientific and Technical Information of China (English)

    CHEN Xinjun; LU Huajie; LIU Bilin; FANG Zhou

    2012-01-01

    Beak of cephalopod is an important hard tissue.Understanding the morphology of beak can yield critical information on the role of cephalopods in the ecosystem.The south patagonic stock of the Argentine shortfin squid,Illex argentinus,is not only one of the most important fishing targets,but also one of the most important species in the marine eco-system of the southwest Atlantic.A total of 430 samples of I.argentinus,including 229 females 103-346mm in mantle length (ML) and 201males 140-298mm in ML,were collected from the area off the Exclusive Economic Zone of Argentinean waters by Chinese squid jigging vessels during February to May 2007.The morphology of their beaks was evaluated.The relationships between beak morphological variables and ML differed significantly among males and females.They could be best described by logarithmic functions for females and linear functions for males except for upper wing length (UWL) and lower rostrum length (LRL),which followed exponential functions in their relationships with ML.The results showed the sexual dimorphism in the relationship between ML and beak morphology for the south patagonic stock of I.argentinus.However,no significant difference was found between males and females in the relationships of beak morphological variables (except for UWL) versus body weight (BW),suggesting that the relationship between beak morphological variables and BW can be used for estimating the biomass consumed by their predators.

  16. Les corps disparus. La fictionnalisation de la guerre sale dans l’Argentine de la dictature militaire (1976-1983

    Directory of Open Access Journals (Sweden)

    Jordi Bonells

    2012-08-01

    Full Text Available À travers l’analyse de certains romans en langue espagnole sur la dictature militaire en Argentine (1976-1983, l’auteur aborde la question de la disparition comme réalité historique et comme thème littéraire à travers une double approche : analyser l’intentionnalité qui porte ces récits sur le « Proceso » ; rendre compte des mécanismes qui régissent ce que l’on peut appeler la « mise en dictature du roman ».A través del análisis de algunas novelas en lengua española sobre la dictadura militar en Argentina (1976-1983, el autor aborda la cuestión de la desaparición como realidad histórica y como tema literario a partir de un doble enfoque: analizar la intencionalidad subyacente de dichos relatos sobre el Proceso; dar cuenta de los mecanismos que regulan lo que podemos denominar «la novela en dictadura».

  17. The Usefulness of Edible and Medicinal Fabaceae in Argentine and Chilean Patagonia: Environmental Availability and Other Sources of Supply

    Directory of Open Access Journals (Sweden)

    Soledad Molares

    2012-01-01

    Full Text Available Fabaceae is of great ethnobotanical importance in indigenous and urban communities throughout the world. This work presents a revision of the use of Fabaceae as a food and/or medicinal resource in Argentine-Chilean Patagonia. It is based on a bibliographical analysis of 27 ethnobotanical sources and catalogues of regional flora. Approximately 234 wild species grow in Patagonia, mainly (60% in arid environments, whilst the remainder belong to Sub-Antarctic forest. It was found that 12.8% (30 species, mainly woody, conspicuous plants, are collected for food or medicines. Most of the species used grow in arid environments. Cultivation and purchase/barter enrich the Fabaceae offer, bringing it up to a total of 63 species. The richness of native and exotic species, and the existence of multiple strategies for obtaining these plants, indicates hybridization of knowledge and practices. Only 22% of the total species used are mentioned in bothcontexts of food and medicine, reflecting low-use complementation. This study suggests a significant ecological appearance and a high level of availability in shops and exchange networks in Patagonia, highlighting the need to consider the full set of environmental and socioeconomic factors in research related to the use and cultural importance of plants in regional contexts.

  18. Prevalence and evolution of helmet use in motorcycle riders in an Argentine city (Mar del Plata, 2006-2014

    Directory of Open Access Journals (Sweden)

    Jeremías David Tosi

    2016-03-01

    Full Text Available Traffic collisions involving motorcyclists are a growing problem in low and middle income countries. Helmet use is the foremost protective measure for this group of road users, however many riders do not wear them. The objective of the present study is to report the changes in helmet use during the period 2006-2014 in an Argentine city and discover associated factors for the year 2014. The sample includes more than 6,900 observations of motorcyclists carried out during the years 2006 (n=962, 2008 (n=977, 2012 (n=2,542, and 2014 (n=2,466. The data indicates a progressive increase in helmet use over time, but differences due to gender and type of rider remain. Factors associated to helmet use in motorcycle drivers during 2014 were: passenger helmet use, motorcycle type, license plate use and gender. Although the results are positive, it is necessary to be attentive to the negative consequences of the growing fleet of motorcycles.

  19. The peri-urban interface and house infestation with Triatoma infestans in the Argentine Chaco: an underreported process?

    Directory of Open Access Journals (Sweden)

    Yael M Provecho

    2014-11-01

    Full Text Available Peri-urban infestations with triatomine bugs, their sources and their dynamics have rarely been investigated. Here, we corroborated the reported occurrence of Triatoma infestans in a peri-urban area and in neighbouring rural houses in Pampa del Indio, in the Argentine Chaco, and identified its putative sources using spatial analysis and demographic questionnaires. Peri-urban householders reported that 10% of their premises had triatomines, whereas T. infestans was collected by timed manual searches or community-based surveillance in only nine (3% houses. Trypanosoma cruzi-infected T. infestans and Triatoma sordida were collected indoors only in peri-urban houses and were infected with TcV and TcI, respectively. The triatomines fed on chickens, cats and humans. Peri-urban infestations were most frequent in a squatter settlement and particularly within the recently built mud houses of rural immigrants, with large-sized households, more dogs and cats and more crowding. Several of the observed infestations were most likely associated with passive bug transport from other sources and with active bug dispersal from neighbouring foci. Thus, the households in the squatter settlement were at a greater risk of bug invasion and colonisation. In sum, the incipient process of domestic colonisation and transmission, along with persistent rural-to-urban migratory flows and unplanned urbanisation, indicate the need for active vector surveillance and control actions at the peri-urban interface of the Gran Chaco.

  20. Evolving society and mental health

    Directory of Open Access Journals (Sweden)

    Dipesh Bhagabati

    2016-07-01

    Full Text Available Numerous issues related to culture, occupation, gender, caste, and health, to name a few, have faced harshness of society from time immemorial. Reasons are debatable, ranging from somewhat understandable to completely unacceptable. There is no doubt that society is dynamic and it has changed its view on many of the issues with passing time. Mental health is one such issue which society has neglected for quite a long time. Even today, mental health and mentally ill people face stigma and discrimination in their family, society, and at their workplace. People do not feel comfortable talking about mental health, even if they know that there cannot be any health without a healthy mind. But, as Albert Einstein has said “learn from yesterday, live for today, and hope for tomorrow”, everything is not lost. The mentally ill patients who were once abandoned and left on their own have now started to get humane care and attention. This article discusses this very pertinent topic of changing society and mental health.

  1. Continuities and ruptures in Argentine's regional discourse: The process of conceptual construction of the Pampa Continuidades y rupturas en el discurso regional argentino: El proceso de construcción conceptual de la Pampa

    Directory of Open Access Journals (Sweden)

    Esteban Salizzi

    2012-01-01

    Full Text Available The present article aims to compare the main proposals of regionalization of the argentine territory seeking to establish -from its survey, analysis and comparison- continuities and ruptures around the conceptual construction of the Pampa. This concern is set within the perspective that points out that regional geography -as geographical writing mode that appeals to the distinction, nomination and order of subnational entities to provide overall interpretations about the territory and society of a country-, in its various proposals, involves ways to represent and address the internal asymmetries of a society. It deepens, then, both in the various paradigms on which these proposals have been established as in the constructions that these have developed of the region in question. Geographical unit that has been repeatedly imagined as possessing a supposed centrality based on the population and industrial weight, the level of agricultural productivity, the generating of huge economic wealth, its history, and the agglutinating/articulating role of the economy and politicsEl presente artículo tiene como objetivo comparar las principales propuestas de regionalización del territorio argentino buscando establecer -a partir de su relevamiento, análisis y comparación- continuidades y rupturas en torno a la construcción conceptual de la Pampa. Esta preocupación se establece dentro de la perspectiva que señala que la geografía regional -en tanto modalidad de escritura geográfica que apela a la distinción, nominación y ordenamiento de entidades subnacionales para ofrecer interpretaciones de conjunto sobre el territorio y la sociedad de un país-, en sus diversas propuestas, implica modos de representar y de abordar las asimetrías internas de una sociedad. Se profundiza, entonces, tanto en los diversos paradigmas sobre los cuales se han establecido dichas propuestas como en las construcciones que estas han desarrollado de la región en cuesti

  2. EDUCATING FOR THE INFORMATION SOCIETY

    Directory of Open Access Journals (Sweden)

    Osmundo Rocha Claudino

    2013-12-01

    Full Text Available The emergence of the information society and the implications for the field of education form the object of analysis of this article, therefore, seeks to outline the profile of the model of informational society, since its main historical precedents to its conceptualization. The characterization of the knowledge society, driven by technological change, highlights the rearrangement of the teaching-learning process from the deterritorialization / virtualization, requiring new practical knowledge of the transaction. We conclude that educate in cyberculture implies recognizing the paradigmatic crisis of the educational system, review postures and understand the technological advances as allies of new practices that expand the role of educator and humanitarian vocation to resize a new habitat.

  3. Information Era. Conscience Society. Creativity

    Directory of Open Access Journals (Sweden)

    Dumitru TODOROI

    2011-01-01

    Full Text Available ttendees will learn about the research and development which will be effected by scientists in the branch of Conscience Society creation in next decades of XXI century. Conscience is usually seen as linked to a morality inherent in all humans, to a beneficent universe and/or to divinity. It is increasingly conceived of as applying to the world as a whole and as a main feature of conscience society. It has motivated its numerous models, characteristics and functions of Conscience for creation the societal intelligent adaptable information systems in Conscience Society. The moral life is a vital part for the world to maintain a Conscience (civilized Society, so always keep in mind to: accept differences in others; respond promptly to others; leave some "free" time; care about others as if they were you; treat everyone similarly; never engage in violent acts; have an inner sense of thankfulness; have a sense of commitment. Creativity is a result of brain activity which differentiates individuals and could ensure an important competitive advantage for persons, for companies, for Society in general, and for Conscience Society in special. Very innovative branches – like software industry, computer industry, car industry – consider creativity as the key of business success. Natural Intelligence’ Creativity can develop basic creative activities, but Artificial Intelligence’ Creativity, and, especially, Conscience Intelligence’ Creativity should be developed and they could be enhanced over the level of Natural Intelligence. The basic idea for present communication represent the research results communicated at the last two annual AESM conferences [1] [2].

  4. Big society, big data. The radicalisation of the network society

    NARCIS (Netherlands)

    Frissen, V.

    2011-01-01

    During the British election campaign of 2010, David Cameron produced the idea of the ‘Big Society’ as a cornerstone of his political agenda. At the core of the idea is a stronger civil society and local community coupled with a more withdrawn government. Although many commentators have dismissed thi

  5. The pedagogicalization of ageing societies

    DEFF Research Database (Denmark)

    Fristrup, Tine

    2011-01-01

    ' a' social' pedagogical' problem' involving' a' focus' on' social' pedagogical' interventions' throughout' the' life' course.'In'order'to'shape'the'future'of'society,'the'perspective'on' ageing'and'old'age'has'shifted'from'being'a'determined'process'to' becoming' a'modifiable' process' focusing' on......' the' processes' of' opti) mizing'and'realizing'people’s'potentials'lifelong.'Active'and'healthy' ageing' unfolds' the' cure' to' the' social' problem' of' contemporary' ageing'societies'in'order'to'make'tomorrows'life'in'old'age'better' than' it' is' today.' The' pedagogical' issues' relate' to' the...

  6. Broadband society and generational changes

    CERN Document Server

    Colombo, Fausto

    2011-01-01

    The role generations play in accepting and shaping digital technologies, and possibly vice versa, is an increasingly relevant issue in contemporary society. For the first time in the academic debate, this volume outlines the theoretical issues and explores some results from empirical researches on the relationship between generations and the media in digital society. The first part of the book deals with the theoretical debate on generations, from Mannheim's to the revisiting of some classical notions shaped by disciplines as history, demography, marketing and sociology. The second part gather

  7. LIBRARY ROLES IN CHANGING SOCIETY

    Directory of Open Access Journals (Sweden)

    Laura Juchnevič

    2014-08-01

    Full Text Available Global economy, the development of information and communication technologies, new customer requirements for the quality of products and services encourages organizations to expand their practices, to make innovations, to use creative solutions and to perform new functions – to take on new roles. In this changing environment together with other organizations we have information institutions – libraries. They serve the society, therefore they have to correspond the society needs (Shera, 1976. Purpose – the purpose of this report is to analyze how changing society can influence the change of libraries roles in it. Design/methodology/approach –– research methodology based on the system and sociocultural systems theories (based on Grenier, 2005 and system approach. The chosen theory to validate the analysis is the generation changing theory. It says that society consists of groups of different age and different life experiences (history, technologies, political events, etc. individuals (Levickaitė, 2010. Marc Prensky (2001 claims that our current society can be divided into two groups. Chosen methods: analysis of scientific literature, synthesis, comparison and summarizing. Findings – The roles of libraries depends upon occurring changes in society. According to Marc Prensky (2001, it is possible to divide society in two groups, which are: the digital world immigrants and the digital word natives. The first group are the people born before the digital world establishment and expansion, they learned to use it at older age, usually at work or during their studies, and often they do not understand the necessity of new technologies in their lives (meaning they would not experience big discomfort without it. The second group, the natives of digital world, are people born after the expansion of information and communication technologies; they are able to see and also enjoy the meaning of using these technologies. It is lead to the library

  8. Education in an Aging Society.

    Science.gov (United States)

    Johnson, Harold R.

    1982-01-01

    As society ages, changes in education will include: the development of educational services for older people; the preparation of qualified personnel to serve the elderly; the education of the public about the processes of aging; and the acceleration of efforts to expand and deepen the knowledge base about aging. (MLW)

  9. Infectious Diseases Society of America

    Science.gov (United States)

    ... Application Upcoming Meetings November 16 - 18, 2016 | Adelaide Australia The Australasian HIV&AIDS Conference 2016 February 22 - ... and the American Society of Tropical Medicine and Hygiene (ASTMH) and published in the journal Clinical ... Dental Visits May Help Prevent Pneumonia, Study Shows Read ...

  10. Science in the Information Society

    CERN Multimedia

    2003-01-01

    CERN will host the Role of Science in the Information Society (RSIS) conference on Monday and Tuesday, focusing on how science-driven information and communication technologies can help close the digital divide. There will be an army of bodyguards at CERN at the beginning of December. CERN will not only host the official visits, but also around 500 scientists, politicians, and members of civil society who will descend on the Main Auditorium for the Role of Science in the Information Society (RSIS) conference on 8-9 December. The RSIS conference hosted by CERN is a high-profile event focusing on how to make information technologies work for the greatest human benefit - a marked change from keeping a relatively low profile so far, making its discoveries available to all with little input in how they are applied. The RSIS, held 8-9 December at CERN, will be a Summit Event of the World Summit on the Information Society taking place at Palexpo on 9-13 December. RSIS participants will apply a scientific point of...

  11. White Resentment in Settler Society

    Science.gov (United States)

    Schick, Carol

    2014-01-01

    Teaching about the history and culture of aboriginal peoples in schools of white settler societies can serve as a counter to the dominant story that serves as the national narrative. Even though the actual teaching may well be among the least political and least disruptive type of curricular knowledge on offer, the inclusion of counter stories can…

  12. The American Montessori Society, Inc.

    Science.gov (United States)

    Donahue, Gilbert E.

    2010-01-01

    This article offers a brief history of the establishment of the American Montessori Society (AMS) and takes a closer look at its structure. The history of AMS has essentially been a search for standards and a search for community in its efforts to further the welfare of children in America. It has been an indigenous effort by American parents, and…

  13. Socialization for the Knowledge Society

    Science.gov (United States)

    Karpov, Alexander O.

    2016-01-01

    The purpose of the study is to give an overview and present special features of socialization of the research type that prepares young people for life in the knowledge society. Methods of cultural and historical epistemology, of hermeneutic and structural-functional analysis of social action have been used in the study, as well as elements of the…

  14. Internal Conflicts in Muslim Societies

    Directory of Open Access Journals (Sweden)

    Ashiq Ali Shah

    2001-12-01

    Full Text Available An analysis of psychological theories and the social dynamics of the society help identify salient attributes and processes relevant to conflict among Muslims. The psychodynamic concept of personality and frustration-aggression hypothesis account for the socialization practices in the Muslim societies, emotional instability, unfavorable evaluation of those holding a different viewpoint and venting out one's aggression on the weaker. The tendency of the Muslims to praise their sect/tribe/religious group leads to a groupthink situation that polarizes intergroup relationships. The acts of categorization in group and out group, as postulated by the social identity theory, contribute towards the distorted perception of each other. The Islamic notions of brotherhood, unity and ethnic identity as means of personal identification and social interaction seems to have been forgotten by the Muslims. Though the Western social-psychological constructs are helpful in understanding the causes of conflict among Muslims, they are not germane to Muslim societies. The group belongingness and group favouritism is not necessarily a tool of discrimination and conflict but is an essential component of one's survival in a collectivist society. The Western theories also do not address the economic and political circumstances responsible for the multitude of conflicts among Muslims.

  15. Reconstructing Death in Postmodern Society.

    Science.gov (United States)

    Kastenbaum, Robert

    1993-01-01

    Examines interaction between emerging thanatological movement and its sociohistorical context. Notes that thanatology will take on new shape as individuals and society attempt to cope with postmodernistic forces and deconstructive mentality. Considers prospect for authentic solidarity against distress in reconstructed death system. (Author/NB)

  16. Experts in science and society

    CERN Document Server

    Gigerenzer, Gerd

    2004-01-01

    In today's complex world, we have come to rely increasingly on those who have expertise in specific areas and can bring their knowledge to bear on crucial social, political and scientific questions. Taking the viewpoint that experts are consulted when there is something important at stake for an individual, a group, or society at large, Experts in Science and Society explores expertise as a relational concept. How do experts balance their commitment to science with that to society? How does a society actually determine that a person has expertise? What personal traits are valued in an expert? From where does the expert derive authority? What makes new forms of expertise emerge? These and related questions are addressed from a wide range of areas in order to be inclusive, as well as to demonstrate similarities across areas. Likewise, in order to be culturally comparative, this volume includes examples and discussions of experts in different countries and even in different time periods. The topics include the r...

  17. Understanding Class in Contemporary Societies

    DEFF Research Database (Denmark)

    Harrits, Gitte Sommer

    2007-01-01

    In this paper, I argue that claims about the death of class and the coming of the classless society are premature. Such claims are seldom genuinely empirical, and the theoretical argument often refers to a simple and therefore easily dismissible concept of class. By rejecting the concept of class...

  18. Qualification and certification in radioprotection of odontology students in the State of Rio de Janeiro; Capacitacao e formacao em radioprotecao dos alunos de odontologia no Estado do Rio de Janeiro

    Energy Technology Data Exchange (ETDEWEB)

    Padilha Filho, Lucas Gomes [Hospital Universitario Clementino Fraga Filho, Rio de Janeiro, RJ (Brazil); Universidade Federal, Rio de Janeiro, RJ (Brazil). Faculdade de Medicina. Dept. de Radiologia; Borges, Jose Carlos [Universidade Federal, Rio de Janeiro, RJ (Brazil). Coordenacao dos Programas de Pos-graduacao de Engenharia. Programa de Engenharia Nuclear

    2000-08-01

    The main aim of this study was to conduct a critical survey on the qualification and certification in radioprotection of odontology students from all dental schools in the State of Rio de Janeiro and some dental schools in the State of Sao Paulo, Brazil. The methodology involved the use of questionnaires applied to radiology professors and supervisors and former students. The questionnaires consisted of open and closed questions, which allowed an analysis of both qualitative and quantitative aspects. A critical analysis of the answers revealed that the students' knowledge of radioprotection is very poor, particularly with regard to the new guidelines of the Brazilian Ministry for Health. Consequently, we suggest that dental schools should reform the contents of radiology teaching, thus permitting upcoming students to be better prepared for the challenge of professional quality. (author)

  19. SOCIETY

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

    Congress for Disabled The Fifth National Congress of the China Disabled Persons Federation (CDPF) was held in Beijing on November 11-13. A totalof 630 delegates representing China’s 83 million disabled people heard and discussed a work report by the CDPF before adopting amendments to the federation’s constitution.Deng Pufang, Chairman of the CDPF,said that the federation would enhance con-struction of its local branches. By the end oflast year, 90 percent of its branches in urbanareas and 40 percent in rural regions hadbeen established.The federation employs more than 94,000 full-time staff and more than 400,000 volun-teers in urban communities and villages.

  20. SOCIETY

    Institute of Scientific and Technical Information of China (English)

    2015-01-01

    White Festival A winter Naadam as well as a fire sacrifice festival kicks off on December 23,2014,in Old Barag Banner(county)of Hulunbuir,a city of north China’s Inner Mongolia Autonomous Region.Human Rights Plan China has been working effectively toward goals set by the National Human

  1. SOCIETY

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

    Training for More Students Twelve vocational high schools will be built in the Pearl River Delta over the next few years to train up to 100,000 studentsfrom less-developed areas of south China’s Guangdong Province, to meet the soaring demand for skilled workers in the region, a local education official said on September 1.The delta region has long faced a shortage of labor, and skilled workers are now in particularly high demand as the region seeks to switch focus from labor-intensive manufacturing to value-added industries.

  2. SOCIETY

    Institute of Scientific and Technical Information of China (English)

    1996-01-01

    This group of photos were specially chosen from the works of two young photographers, Yan Xinfa and Zhai Dongfeng. Both love children, particularly children living in villages and small towns. They prefer to JnterwJne children closely with scenery in the countryside. They snap children fishing in rivers, climbing trees to catch birds, running with their dogs in the wind, gathering sugar cane and playing hide-and-seek in maize fields. Rural children seem to enjoy nature much more than urban children.

  3. SOCIETY

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

    Open to Tourists Beijing’s Olympic venues will open to tourists during the weeklong National Day holiday beginning October 1, an official said on August 27. The venues, including the National Stadium and the National Aquatics Center, will be open to the public as they appeared during the Games, and an aquatic amuse- ment park project will begin operation in the National Aquatics Center at the end of the year, said Vice Mayor of Beijing Chen Gang.

  4. Mining adaptation to the radioprotection regulations: evaluation of the regulation CNEN-NN-4.01; Adaptacao da mineracao as normas de radioprotecao: avaliacao da Norma CNEN-NN-4.01

    Energy Technology Data Exchange (ETDEWEB)

    Pereira, Wagner de Souza; Kelecom, Alphonse [Universidade Federal Fluminense (LARARA/UFF), Niteroi, RJ (Brazil). Lab. de Radiobiologia e Radiometria; Silva, Cleber Jabarra da; Campinhos, Gabriela Michalsky [Jabarra Servicos e Comercio de Radioprotecao Ltda., Rio de Janeiro, RJ (Brazil). Consultoria em Radioprotecao

    2011-10-26

    This paper proposes a generic model of monitoring to be used in mining with uranium or thorium associated viewing to estimate the dose of workers for classification the mining in the specific question of worker exposure. Besides the monitoring model, a dosimetric model also is proposed. It is indicated some instruments and techniques used in individual and area monitoring, besides to point out the necessity of radioprotection supervisor specific in this area

  5. Influence of alternating air injection on the color and “alambrado” of natural black olives cv. Arauco, as compared with the traditional Argentine method

    OpenAIRE

    2015-01-01

    Ripe black olives cv. Arauco were processed under different conditions to evaluate the effects of alternating air injection (AI) on the color of olives and on spoilage known as “alambrado”, using a system based on the one patented by the “Instituto de la Grasa” (Sevilla, Spain), as compared with the traditional Argentine processing method, which consists of drying the olives in natural air (“extendido”) for 24 hours at 7, 14 and 21 days of fermentation. Four types of fermentation were used: b...

  6. Selection and characterization of Argentine isolates of Trichoderma harzianum for effective biocontrol of Septoria leaf blotch of wheat.

    Science.gov (United States)

    Stocco, Marina C; Mónaco, Cecilia I; Abramoff, Cecilia; Lampugnani, Gladys; Salerno, Graciela; Kripelz, Natalia; Cordo, Cristina A; Consolo, Verónica F

    2016-03-01

    Species of the genus Trichoderma are economically important as biocontrol agents, serving as a potential alternative to chemical control. The applicability of Trichoderma isolates to different ecozones will depend on the behavior of the strains selected from each zone. The present study was undertaken to isolate biocontrol populations of Trichoderma spp. from the Argentine wheat regions and to select and characterize the best strains of Trichoderma harzianum by means of molecular techniques. A total of 84 out of the 240 strains of Trichoderma were able to reduce the disease severity of the leaf blotch of wheat. Thirty-seven strains were selected for the reduction equal to or greater than 50% of the severity, compared with the control. The percentage values of reduction of the pycnidial coverage ranged between 45 and 80%. The same last strains were confirmed as T. harzianum by polymerase chain reaction amplification of internal transcribed spacers, followed by sequencing. Inter-simple sequence repeat was used to examine the genetic variability among isolates. This resulted in a total of 132 bands. Further numerical analysis revealed 19 haplotypes, grouped in three clusters (I, II, III). Shared strains, with different geographical origins and isolated in different years, were observed within each cluster. The origin of the isolates and the genetic group were partially related. All isolates from Paraná were in cluster I, all isolates from Lobería were in cluster II, and all isolates from Pergamino and Santa Fe were in cluster III. Our results suggest that the 37 native strains of T. harzianum are important in biocontrol programs and could be advantageous for the preparation of biopesticides adapted to the agroecological conditions of wheat culture.

  7. Skeletal involvement in Gaucher disease: An observational multicenter study of prognostic factors in the Argentine Gaucher disease patients.

    Science.gov (United States)

    Drelichman, Guillermo; Fernández Escobar, Nicolás; Basack, Nora; Aversa, Luis; Larroude, María Silvia; Aguilar, Gabriela; Szlago, Marina; Schenone, Andrea; Fynn, Alcyra; Cuello, María Fernanda; Aznar, Marcela; Fernández, Ramiro; Ruiz, Alba; Reichel, Paola; Guelbert, Norberto; Robledo, Hugo; Watman, Nora; Bolesina, Moira; Elena, Graciela; Veber, S Ernesto; Pujal, Graciela; Galván, Graciela; Chain, Juan José; Arizo, Adriana; Bietti, Julieta; Bar, Daniel; Dragosky, Marta; Marquez, Marisa; Feldman, Leonardo; Muller, Katja; Zirone, Sandra; Buchovsky, Greogorio; Lanza, Victoria; Sanabria, Alba; Fernández, Ignacio; Jaureguiberry, Rossana; Contte, Marcelo; Barbieri María, Angie; Maro, Alejandra; Zárate, Graciela; Fernández, Gabriel; Rapetti, María Cristina; Donato, Hugo; Degano, Adriana; Kantor, Gustavo; Albina, Roberto; Á Lvarez Bollea, María; Brun, María; Bacciedoni, Viviana; Del Río, Francis; Soberón, Bárbara; Boido, Nazario; Schweri, Maya; Borchichi, Sandra; Welsh, Victoria; Corrales, Marcela; Cedola, Alejandra; Carvani, Analía; Diez, Blanca; Richard, Lucía; Baduel, Ccecilia; Nuñez, Gabriela; Colimodio, Rubén; Barazzutti, Lucía; Medici, Hugo; Meschengieser, Susana; Damiani, Germán; Nucifora, María; Girardi, Beatriz; Gómez, Sergio; Papucci, Maura; Verón, David; Quiroga, Luis; Carro, Gustavo; De Ambrosio, Patricia; Ferro, José; Pujol, Marcelo; Castella, Cristina Cabral; Franco, Liliana; Nisnovich, Gisela; Veloso, María; Pacheco, Isabel; Savarino, Mario; Marino, Andrés; Saavedra, José Luis

    2016-10-01

    Patients with Gaucher type 1 (GD1) throughout Argentina were enrolled in the Argentine bone project to evaluate bone disease and its determinants. We focused on presence and predictors of bone lesions (BL) and their relationship to therapeutic goals (TG) with timing and dose of enzyme replacement therapy (ERT). A total of 124 patients on ERT were enrolled in a multi-center study. All six TG were achieved by 82% of patients: 70.1% for bone pain and 91.1% for bone crisis. However, despite the fact that bone TGs were achieved, residual bone disease was present in 108 patients on ERT (87%) at time 0. 16% of patients showed new irreversible BL (bone infarcts and avascular osteonecrosis) despite ERT, suggesting that they appeared during ERT or were not detected at the moment of diagnosis. We observed 5 prognostic factors that predicted a higher probability of being free of bone disease: optimal ERT compliance; early diagnosis; timely initiation of therapy; ERT initiation dose ≥45 UI/kg/EOW; and the absence of history of splenectomy. Skeletal involvement was classified into 4 major phenotypic groups according to BL: group 1 (12.9%) without BL; group 2 (28.2%) with reversible BL; group 3 (41.9%) with reversible BL and irreversible chronic BL; and group 4 (16.9%) with acute irreversible BL. Our study identifies prognostic factors for achieving best therapeutic outcomes, introduces new risk stratification for patients and suggests the need for a redefinition of bone TG. Am. J. Hematol. 91:E448-E453, 2016. © 2016 Wiley Periodicals, Inc.

  8. Isolation of Salmonella spp. from yacare caiman (Caiman yacare) and broad-snouted caiman (Caiman latirostris) from the Argentine Chaco.

    Science.gov (United States)

    Uhart, Marcela; Ferreyra, Hebe; Mattiello, Rosana; Caffer, María Inés; Terragno, Raquel; Schettino, Adriana; Prado, Walter

    2011-04-01

    Presence of Salmonella spp. was evaluated in yacare caiman (Caiman yacare) and broad-snouted caiman (Caiman latirostris) from a ranching facility in the Argentine Chaco. Crocodilian ranching programs are based on captive breeding of wild-harvested eggs and release of excess hatchlings into the wild. Samples for bacterial isolation were collected from 102 captive (35 C. yacare and 67 C. latirostris) and seven free-ranging caiman (four C. yacare and three C. latirositris) between 2001 and 2005 and from three artificially incubated C. yacare wild eggs. Two Salmonella spp. of known zoonotic potential, S. infantis and S. nottingham, were isolated from captive caiman in 2001 and 2002, respectively. This is the first report for S. nottingham in reptiles and of S. infantis in caiman. Salmonella spp. prevalence varied significantly between years, with a 77% prevalence peak in 2002. Although the cause of this increase was not confirmed, we found no correlation with the type of enclosure, caiman species, or body weight. Deteriorated physical condition of caiman hatchlings due to dietary changes in 2002 could have influenced Salmonella spp. shedding. However, external sources such as food, water, or enclosures could not be ruled out. Pathogenic Salmonella spp. present a risk for human infection. Inadvertent introduction of Salmonella spp. or other bacteria into the environment when caiman are released could pose a threat to wild caiman populations. Prophylactic measures to detect and decrease Salmonella spp. presence in caiman ranching facilities are recommended to reduce risk to humans and make caiman-ranching a sound conservation strategy for crocodilian species.

  9. Invasive breast cancer in Argentine women: association between risk and prognostic factors with antigens of a peptidic and carbohydrate nature

    Directory of Open Access Journals (Sweden)

    Croce MV

    2011-12-01

    Full Text Available Sandra O Demichelis, Marina T Isla-Larrain, Luciano Cermignani, Cecilio G Alberdi, Amada Segal-Eiras, María Virginia CroceCentre of Basic and Applied Immunological Research, Faculty of Medical Sciences, National University of La Plata, La Plata, ArgentinaObjective: In breast cancer, several tumor markers have been identified. The marker most extensively associated with breast cancer is MUC1. The objective of the study was to analyze prognostic and risk factors in relation to tumor markers in order to clarify breast cancer biology. A total of 349 primary tumor samples and lymph nodes from breast cancer patients were studied. Risk and prognostic factors were considered. An immunohistochemical approach was applied and an extensive statistical analysis was performed, including frequency analysis and analysis of variance. Correlation among variables was performed with principal component analysis.Results: All the antigens showed an increased expression according to tumor size increment; moreover, sialyl Lewis x expression showed a significant increase in relation to disease stage, whereas Tn and TF presented a positive tendency. Vascular invasion was related to sialyl Lewis x expression and number of metastatic lymph nodes. Taking into account risk factors, when a patient had at least one child, Lewis antigens diminished their expression. In relation to breastfeeding, sialyl Lewis x expression diminished, although its apical expression increased.Conclusion: Associations between MUC1 and carbohydrate antigens and risk and prognostic factors show the complexity of the cellular biological behavior that these antigens modulate in breast cancer.Keywords: breast cancer, Argentine women, risk factors, prognostic factors, antigenic expression

  10. Interactive effects of large- and small-scale sources of feral honey-bees for sunflower in the Argentine Pampas.

    Directory of Open Access Journals (Sweden)

    Agustín Sáez

    Full Text Available Pollinators for animal pollinated crops can be provided by natural and semi-natural habitats, ranging from large vegetation remnants to small areas of non-crop land in an otherwise highly modified landscape. It is unknown, however, how different small- and large-scale habitat patches interact as pollinator sources. In the intensively managed Argentine Pampas, we studied the additive and interactive effects of large expanses (up to 2200 ha of natural habitat, represented by untilled isolated "sierras", and narrow (3-7 m wide strips of semi-natural habitat, represented by field margins, as pollinator sources for sunflower (Helianthus annus. We estimated visitation rates by feral honey-bees, Apis mellifera, and native flower visitors (as a group at 1, 5, 25, 50 and 100 m from a field margin in 17 sunflower fields 0-10 km distant from the nearest sierra. Honey-bees dominated the pollinator assemblage accounting for >90% of all visits to sunflower inflorescences. Honey-bee visitation was strongly affected by proximity to the sierras decreasing by about 70% in the most isolated fields. There was also a decline in honey-bee visitation with distance from the field margin, which was apparent with increasing field isolation, but undetected in fields nearby large expanses of natural habitat. The probability of observing a native visitor decreased with isolation from the sierras, but in other respects visitation by flower visitors other than honey-bees was mostly unaffected by the habitat factors assessed in this study. Overall, we found strong hierarchical and interactive effects between the study large and small-scale pollinator sources. These results emphasize the importance of preserving natural habitats and managing actively field verges in the absence of large remnants of natural habitat for improving pollinator services.

  11. Influence of weeds on Argentine ant (Hymenoptera: Formicidae) and obscure mealybug (Hemiptera: Pseudococcidae) in a central California vineyard.

    Science.gov (United States)

    Costello, Michael J; Welch, Mark D

    2014-06-01

    Obscure mealybug is a pest of grapes in the cool climate regions of coastal California, is found on some vineyard weeds, and is tended by the Argentine ant. A study was conducted at a vineyard in Arroyo Grande, CA, to evaluate the impact of weeds on ant activity on grapevines, and the role that ants and weeds have on obscure mealybug infestation in grape clusters. The incidence of the fungus Botrytis cinerea was recorded as well. Treatments were weed exclusion versus the presence of weeds, and ant exclusion versus the presence of ants. Ant activity was evaluated weekly using sugar-based monitoring stations, and mealybug infestation and Botrytis incidence of clusters were evaluated at harvest. Ant exclusion reduced the overall number of ant visits by 82%, and ants increased mealybug infestation of clusters by 53%. Ant activity was 33% higher in the weeds treatment, but there was no impact of weeds on mealybug infestation. We suggest that the higher ant activity recorded in the weeds treatment may have been an artifact of the sugar-based sampling method. Botrytis incidence was three times higher with ants, but did not differ between weeds and weed exclusion treatments. The study supports other research showing a relationship between mealybug infestation and the presence of ants, as well as the lack of impact of floor vegetation on mealybug infestation of grape clusters. It is the first report of a relationship between ants and Botrytis, although it is more likely that the higher Botrytis incidence found here is a result of increased mealybug density than a direct effect by ants.

  12. Favipiravir (T-705 inhibits Junin virus infection and reduces mortality in a guinea pig model of Argentine hemorrhagic fever.

    Directory of Open Access Journals (Sweden)

    Brian B Gowen

    Full Text Available BACKGROUND: Junín virus (JUNV, the etiologic agent of Argentine hemorrhagic fever (AHF, is classified by the NIAID and CDC as a Category A priority pathogen. Presently, antiviral therapy for AHF is limited to immune plasma, which is readily available only in the endemic regions of Argentina. T-705 (favipiravir is a broadly active small molecule RNA-dependent RNA polymerase inhibitor presently in clinical evaluation for the treatment of influenza. We have previously reported on the in vitro activity of favipiravir against several strains of JUNV and other pathogenic New World arenaviruses. METHODOLOGY/PRINCIPAL FINDINGS: To evaluate the efficacy of favipiravir in vivo, guinea pigs were challenged with the pathogenic Romero strain of JUNV, and then treated twice daily for two weeks with oral or intraperitoneal (i.p. favipiravir (300 mg/kg/day starting 1-2 days post-infection. Although only 20% of animals treated orally with favipiravir survived the lethal challenge dose, those that succumbed survived considerably longer than guinea pigs treated with placebo. Consistent with pharmacokinetic analysis that showed greater plasma levels of favipiravir in animals dosed by i.p. injection, i.p. treatment resulted in a substantially higher level of protection (78% survival. Survival in guinea pigs treated with ribavirin was in the range of 33-40%. Favipiravir treatment resulted in undetectable levels of serum and tissue viral titers and prevented the prominent thrombocytopenia and leucopenia observed in placebo-treated animals during the acute phase of infection. CONCLUSIONS/SIGNIFICANCE: The remarkable protection afforded by i.p. favipiravir intervention beginning 2 days after challenge is the highest ever reported for a small molecule antiviral in the difficult to treat guinea pig JUNV challenge model. These findings support the continued development of favipiravir as a promising antiviral against JUNV and other related arenaviruses.

  13. Faulting and erosion in the Argentine Precordillera during changes in subduction regime: Reconciling bedrock cooling and detrital records

    Science.gov (United States)

    Fosdick, Julie C.; Carrapa, Barbara; Ortíz, Gustavo

    2015-12-01

    The Argentine Precordillera is an archetypal retroarc fold-and-thrust belt that records tectonics associated with changing subduction regimes. The interactions between exhumation and faulting in the Precordillera were investigated using apatite and zircon (U-Th-Sm)/He and apatite fission track thermochronometry from the Precordillera and adjacent geologic domains. Inverse modeling of thermal histories constrains eastward in-sequence rock cooling associated with deformation and erosion from 18 to 2 Ma across the Central Precordillera tracking thrusting during this time. The youngest AHe ages (5-2 Ma) and highest erosion rates are located in the eastern and western extremities of the Precordillera and indicate that recent denudation is concentrated at its structural boundaries. Moreover, synchronous rapid Pliocene cooling of the Frontal Cordillera, Eastern Precordillera, and Sierra del Valle Fértil was coeval with initiation of basement-involved faulting in the foreland. Detrital zircon U-Pb geochronology from the ca. 16-8.1 Ma Bermejo foreland basin strata suggests fluvial connectivity westward beyond the Frontal Cordillera to the Main Cordillera and Coast Range followed by an important shift in sediment provenance at ca. 10 Ma. At this time, we suggest that a substantial decrease in Permo-Triassic igneous sources in the Frontal Cordillera and concurrent increase in recycled zircons signatures of Paleozoic strata are best explained by uplift and erosion of the Precordillera during widening of the thrust-belt. Bedrock thermochronology and modeling indicate a 2-6 Myr lag time between faulting-related cooling in the hinterland and the detrital record of deformation in the foreland basin, suggesting that for tectonically active semi-arid settings, bedrock cooling may be more sensitive to onset of faulting. We suggest that high erosion rates in the Frontal Cordillera and Eastern Precordillera are associated with increased interplate coupling during shallowing of the

  14. Morphological study of the radioprotective effect of vitamin E (dl-alpha-tocopheryl) in tissue reparation in rats; Estudo morfologico do efeito radioprotetor da vitamina E (dl-alfa-tocoferil) na reparacao tecidual em ratos

    Energy Technology Data Exchange (ETDEWEB)

    Manzi, Flavio Ricardo [Pontificia Univ. Catolica de Minas Gerais, Belo Horizonte, MG (Brazil). Raduilogia Odontologica]. E-mail: manzi@pucminas.br; Boscolo, Frab Norberto; Almeida, Solange Maria de [Universidade Estadual de Campinas, Piracicaba, SP (Brazil). Faculdade de Odontologia. Radiologia Odontologica; Tuji, Fabricio Mesquita [Para Univ., Belem, PA (Brazil). Radiologia Odontologica

    2003-12-01

    The purpose of this work was to evaluate the action of the vitamin E as a radioprotective agent in the process of tissue reparation in rats submitted to a surgical procedure, which consisted of a wound done in the fore dorsal area. The animals were divided into five groups: group C (controls) - wound; group VE - previous treatment with vitamin E (90 UI); group IR - wound and irradiation of the borders three days after surgery; group VEIR - previous treatment with 90 UI of the vitamin E and irradiation of the borders three days after the surgery; group OIR - previous treatment with olive oil and irradiation of the borders three days after surgery. The radioprotective effect of the vitamin E was evaluated using hematoxylin-eosin stained specimens in order to identify granulation tissue, at 4, 7, 14 and 21 days after the surgical procedures. The results showed that 6 Gy of electron irradiation with a beam of 6 MeV caused retardation of the tissue repairing process and that vitamin E was effective as a radioprotective agent. (author)

  15. Radioprotection in dentistry: Analysis of the Dentistry Faculties of the Rio de Janeiro State not referring at personnel and installations; Radioprotecao em Odontologia: analise das faculdades de Odontologia do Estado do Rio de Janeiro no tocante a pessoal e instalacoes

    Energy Technology Data Exchange (ETDEWEB)

    Padilha F, L.G. [PEN-COPPE/UFRJ Fund. Tecnica Educacional Souza Marques. Av. Mirandela 786 c/15 26520-460, Nilopolis, RJ, (Brazil); Borges, J.C.; Raymundo Junior, R.; Koch, H.A

    1998-12-31

    The objective was to show the necessity and the importance of the training and formation of the dentist in radioprotection according to the recent proposal for technical regulations `Radiological protection directrixes in Medical and Dentistry radiodiagnostic` of the Secretaria do Vigilancia Sanitaria of Ministerio da Saude (SVSMS). This regulation establishes basic standards to radioprotection in the medical and dentistry areas, including principles, limits, obligations and basic controls for the man and environment protection, versus possible improper effects caused by the use of ionizing radiation sources. An analysis of the discipline programs of the Dentistry Schools of Rio de Janeiro state indicates that they show a little or none preoccupation by the radiological protection, which was confirmed through a survey applied toward responsible professors by department or radiology service to the dentistry Schools. This work suggests the creation or adaptation of the existing disciplines introducing radioprotection and images quality in radiodiagnostic, to improve, complement and to make uniform the formation of future dentists optimizing the solution of the identified problems. (Author)

  16. Variation in the proximate composition and fatty acid profile recovered from Argentine hake (Merluccius hubbsi waste from Patagonia

    Directory of Open Access Journals (Sweden)

    Cretton, M.

    2016-03-01

    Full Text Available The fish processing operations in Patagonia produce large amounts of waste. The main fishery resource in Argentina is the Argentine hake (Merluccius hubbsi. The ports of the province of Chubut (the most important of which are Puerto Madryn, Rawson and Comodoro Rivadavia, together with Caleta Paula Port (province of Santa Cruz, in the Argentine Patagonia, capture more than 82,000 tons of hake annualy, 80% of which are of M. hubbsi, which is mostly converted into fillets. From this capture, about 2,296 tons of liver would be available for the extraction of oil. To promote the recovery and industrial use of fish oil, in the present study, we determined the variation in the proximate composition and fatty acid profile of Argentine hake waste from the ports mentioned above at different catch times. Proximate composition was determined according of the Official Methods of Analysis (AOAC. Fatty acid profile was analyzed by gas chromatography of the fatty acid methyl esters (FAMEs. A standard mixture of FAMEs was run under identical conditions to identify the compounds on the basis of their retention times. Fatty acids were quantified using heptadecanoic acid (C17:0 as internal standard. The highest lipid recovery (27.0 to 41.8% of total lipids was obtained from the liver fraction. Palmitic acid (C16:0, oleic acid (18:1 n9, docosahexaenoic acid (22:6 n3, eicosapentaenoic acid (20:5 n3 and palmitoleic acid (16:1 were the main constituents. Protein levels in viscera without livers (V-L were higher than those in the liver. The extraction of marine fish oil and the production of fish offal meal from waste from fish factories would contribute to the sustainability of the regional industry, because it would also decrease the volume of waste, with benefits to the environment.El procesamiento de pescados en Patagonia produce gran cantidad de residuos. El recurso de pesca más importante en la Argentina es la merluza argentina (Merluccius hubbsi. En Patagonia

  17. Space Weather, Environment and Societies

    CERN Document Server

    Lilensten, Jean

    2006-01-01

    Our planet exists within a space environment affected by constantly changing solar atmosphere producing cosmic particles and electromagnetic waves. This "space weather" profoundly influences the performance of our technology because we primarily use two means for transmitting information and energy; namely, electromagnetic waves and electricity. On an everyday basis, we have developed methods to cope with the normal conditions. However, the sun remains a fiery star whose 'angry' outbursts can potentially destroy spacecrafts, kill astronauts, melt electricity transformers, stop trains, and generally wreak havoc with human activities. Space Weather is the developing field within astronomy that aims at predicting the sun’s violent activity and minimizing the impacts on our daily lives. Space Weather, Environment, and Societies explains why our technological societies are so dependent on solar activity and how the Sun disturbs the transmission of information and energy. Footnotes expand specific points and the ...

  18. INFORMATION SOCIETY EVOLUTION AND EFFECTS

    DEFF Research Database (Denmark)

    Brooks, Anthony Lewis

    2016-01-01

    The evolution and effects of the information society can be exemplified via many threads, both in hard and soft science, according to ones’ discipline and field. In this contribution, the speaker’s three decades of applied research acts as a vehicle to demonstrate development and impact via...... directly and creatively applying technical advances to affect life quality at a societal level. Illustrated is how empirical research successfully reaches beyond the walls of academia to directly affect individuals, groups and communities across abilities and ages. Developments that have led to patented...... commercial product, national and international projects, and industry startups (including impactful third party research investigations) form the basis for discussion. Beyond this, a wider more generic perspective reflects on product adoption that illustrate todays’ contemporary e-society tendencies where...

  19. Architecture for the silvering society

    DEFF Research Database (Denmark)

    Andersson, Jonas E; Rönn, Magnus

    Abstract In the context of the universal ageing process that is currently taking place in western society, the organization of architecture competitions that deals with space for dependent ageing comes of relevance. Based on the welfare regime theory, it could be argued that this type of architec......Abstract In the context of the universal ageing process that is currently taking place in western society, the organization of architecture competitions that deals with space for dependent ageing comes of relevance. Based on the welfare regime theory, it could be argued that this type......, since a spatial innovation is juxtaposed with sociopolitical reform work of the welfare regime. The present study is an explorative study of programming competition documents and winning entries that were part of the Swedish governmental initiative of 2010,” Growing older, Living well,” to innovate...

  20. The pedagogicalization of ageing societies

    DEFF Research Database (Denmark)

    Fristrup, Tine

    2011-01-01

    ' the' processes' of' opti) mizing'and'realizing'people’s'potentials'lifelong.'Active'and'healthy' ageing' unfolds' the' cure' to' the' social' problem' of' contemporary' ageing'societies'in'order'to'make'tomorrows'life'in'old'age'better' than' it' is' today.' The' pedagogical' issues' relate' to' the......Transformations' in' the' age'profile'of' a'population' are' a' response' to' political' and' economic' structures' and' in' relation' to' public'services'older'people'become'a'burden'to'the'younger'work) ing'people.'The'construction'of'a'social'problem'in'relation'to'popu) lation' ageing' becomes......' a' social' pedagogical' problem' involving' a' focus' on' social' pedagogical' interventions' throughout' the' life' course.'In'order'to'shape'the'future'of'society,'the'perspective'on' ageing'and'old'age'has'shifted'from'being'a'determined'process'to' becoming' a'modifiable' process' focusing' on...

  1. Information Societies and Digital Divides

    CERN Document Server

    Sorj, Bernardo

    2008-01-01

    The book argues ICT are part of the set of goods and services that determine quality of life, social inequality and the chances for economic development. Therefore understanding the digital divide demands a broader discussion of the place of ICT within each society and in the international system. The author argues against the perspectives that either isolates ICT from other basic social goods (in particular education and employment) as well as those that argue that new technologies are luxury of a consumer society. Though the author accepts that new technologies are not a panacea for the problems of inequality, access to them become a condition of full integration of social life. Using examples mainly from Latin America, the work presents some general policy proposals on the fight against the digital divide which take in consideration other dimensions of social inequality and access to public goods. Bernardo Sorj was born in Montevideo, Uruguay. He is a naturalized Brazilian, living in Brazil since 1976. He ...

  2. INFORMATION SOCIETY AND KNOWLEDGE ECONOMY

    Directory of Open Access Journals (Sweden)

    Mihane BERISHA NAMANI

    2009-12-01

    Full Text Available Today, technologies have changed our social and economic life. Society is becoming “knowledge society” and information and communication technology has played an important role. The economy is evolving out of classic model of the economy in the new economy known as “knowledge economy”. Information and communication technology is bringing changes to various sectors of economy. Business is undergoing a fundamental structural transformation and traditional business become more dependent on Internet related technologies. This paper describes the role and the importance of the use of information technology with special emphases how economy and business can benefit from information technology. This technology play a key role and influence society and have a great impact in all spheres of economy. This components are described and discussed while the use of this technology for business purposes are proposed as necessary.

  3. Human cloning and 'posthuman' society.

    Science.gov (United States)

    Blackford, Russell

    2005-01-01

    Since early 1997, when the creation of Dolly the sheep by somatic cell nuclear transfer was announced in Nature, numerous government reports, essays, articles and books have considered the ethical problems and policy issues surrounding human reproductive cloning. In this article, I consider what response a modern liberal society should give to the prospect of human cloning, if it became safe and practical. Some opponents of human cloning have argued that permitting it would place us on a slippery slope to a repugnant future society, comparable to that portrayed in Aldous Huxley's novel, Brave New World. I conclude that, leaving aside concerns about safety, none of the psychological or social considerations discussed in this article provides an adequate policy justification for invoking the state's coercive powers to prevent human cloning.

  4. Architecture in the network society

    DEFF Research Database (Denmark)

    2004-01-01

    Under the theme Architecture in the Network Society, participants were invited to focus on the dialog and sharing of knowledge between architects and other disciplines and to reflect on, and propose, new methods in the design process, to enhance and improve the impact of information technology...... on architecture. This conference and the past history of eCAADe is an example on establishing a social network for the sharing of knowledge regarding the use of computers in architectural education and research....

  5. The Geochemical Society(GS)

    Institute of Scientific and Technical Information of China (English)

    Seth M.Davis

    2007-01-01

    @@ Mission The Geochemical Society is an international nonprofit organization for scientists involved in the practice,study and teaching of geochemistry.0ur principal roles are to understand and meet the needs of our members so as to provide them with programs and services that will help them be better geochemists;to empower geochemists through information,education,relationships and resources that will enrich their professional development and careers;and to advance the thought and application of geochemistry.

  6. [Civil bioethics in pluralistics societies].

    Science.gov (United States)

    Cortina, A

    2000-01-01

    The author examines how Bioethics should be approached in a pluralist society. She argues that through the gradual discovery of shared ethical values and principles for judging which practices are humanizing and which or not, ever-more dense civil Bioethics helps bring out--in contrast to relativism and subjectivism--an ethical intersubjectiveness, the fundaments of which should be addressed by moral philosophy if it hopes to fulfill one of its main tasks.

  7. Applied Ethics in Nowadays Society

    OpenAIRE

    Tomita CIULEI

    2013-01-01

    This special issue is dedicated to Nowadays Applied Ethics in Society, and falls in the field of social sciences and humanities, being hosted both theoretical approaches and empirical research in various areas of applied ethics. Applied ethics analyzes of a series of morally concrete situations of social or professional practice in order to make / adopt decisions. In the field of applied ethics are integrated medical ethics, legal ethics, media ethics, professional ethics, environmental ethic...

  8. Equalitarian Societies are Economically Impossible

    CERN Document Server

    Zheng, Bojin; Shu, Wanneng; Wang, Jianmin; Li, Deyi

    2012-01-01

    The inequality of wealth distribution is a universal phenomenon in the civilized nations, and it is often imputed to the Matthew effect, that is, the rich get richer and the poor get poorer. Some philosophers unjustified this phenomenon and tried to put the human civilization upon the evenness of wealth. Noticing the facts that 1) the emergence of the centralism is the starting point of human civilization, i.e., people in a society were organized hierarchically, 2) the inequality of wealth emerges simultaneously, this paper proposes a wealth distribution model based on the hidden tree structure from the viewpoint of complex network. This model considers the organized structure of people in a society as a hidden tree, and the cooperations among human beings as the transactions on the hidden tree, thereby explains the distribution of wealth. This model shows that the scale-free phenomenon of wealth distribution can be produced by the cascade controlling of human society, that is, the inequality of wealth can pa...

  9. CERN to host conference on information society

    CERN Multimedia

    CERN will host a conference on the Role of Science in the Information Society (RSIS) in December. This conference will focus on ensuring that the information society benefits people to the greatest extent possible, especially in developing regions.

  10. Society of American Gastrointestinal and Endoscopic Surgeons

    Science.gov (United States)

    ... The Research Foundation of the American Society of Colon and Rectal Surgeons (ASCRS) and the Society of American ... W. OIympic Blvd Suite 600 Los Angeles, CA 90064 USA webmaster@sages.org Tel: (310) 437- ...

  11. Memory Book from Islamic Societies in Massachusetts

    OpenAIRE

    Islamic Societies in Massachusetts

    2012-01-01

    Messages come from Harvard Islamic Society, Simmons Muslim Student Association, Tufts University Muslim Students Association, Islamic Society of Boston University, Westborough High School, University of Massachusetts Amherst, Shrewsbury High School

  12. American Orthopaedic Foot and Ankle Society

    Science.gov (United States)

    ... education site of the American Orthopaedic Foot & Ankle Society. Patients Visit the official patient education site of the American Orthopaedic Foot & Ankle Society. Patients Visit the official patient education site of ...

  13. Society of NeuroInterventional Surgery

    Science.gov (United States)

    ... membership and to apply online. SNIS Mission The Society of NeuroInterventional Surgery is dedicated to excellence in ... 703-691-2272 Fax 703-537-0650 © 2016 Society of NeuroInterventional Surgery. All Rights Reserved.

  14. European Planning for an Information Society

    DEFF Research Database (Denmark)

    Henten, Anders; Skouby, Knud Erik; Falch, Morten

    1996-01-01

    Article analysing the different programmes and plans for the development of information societies in Europe.......Article analysing the different programmes and plans for the development of information societies in Europe....

  15. The European Mathematical Society Ethics Committee

    DEFF Research Database (Denmark)

    Jensen, Arne

    2011-01-01

    The Executive Committee of the European Mathematical Society created an Ethics Committee in the Spring of 2010.......The Executive Committee of the European Mathematical Society created an Ethics Committee in the Spring of 2010....

  16. Vestiges of an Ordovician west-vergent thin-skinned Ocloyic thrust belt in the Argentine Precordillera, southern Central Andes

    Science.gov (United States)

    Thomas, William A.; Astini, Ricardo A.

    2007-08-01

    Collision of the down-going, Laurentia-derived Argentine Precordillera terrane with the Gondwanan margin drove the Ordovician Ocloyic orogeny, including subduction volcanism, metamorphism, and top-to-west shearing east of the Precordillera. In the Precordillera, above passive-margin carbonates (Lower Ordovician San Juan Limestone and older carbonates), a Middle to Upper Ordovician westward-prograding synorogenic clastic wedge of black shale (Gualcamayo Shale) and coarser clastic sediment (Las Vacas Conglomerate and Trapiche Formation) fills a peripheral foreland basin. New research has identified vestiges of a west-directed thin-skinned Ocloyic foreland thrust belt that has been fragmented by east-directed Andean thrusting. The El Corral thrust sheet, with hanging-wall detachment in the San Juan Limestone, extends over a west-directed footwall frontal ramp and extensive flat to low-angle footwall cutoff in the Gualcamayo and Las Vacas formations. Las Vacas conglomerates in the footwall include olistoliths (10-m scale) exclusively of San Juan Limestone and Gualcamayo Shale; the beds in some olistoliths are folded. The advancing El Corral thrust sheet successively supplied and overrode the stratigraphically restricted olistoliths. In the El Corral footwall, tight west-vergent folds and faults within an anticlinorium in the San Juan Limestone and Gualcamayo Shale suggest a deeper (unexposed) thrust fault, the Los Celestitos fault. West of the anticlinorium, easterly dip (restored to remove Andean deformation) beneath an angular unconformity between Las Vacas and Trapiche beds is consistent geometrically with the trailing limb of a west-vergent fault-propagation anticline in the hanging wall of the subsurface Los Celestitos fault. The same angular unconformity truncates the El Corral fault and hanging-wall strata. In the Trapiche Formation, contrasting sedimentary facies from sandy turbidites westward to limestone-clast megabeds and olistoliths suggest another frontal

  17. Oxigenoterapia en vuelos nacionales e internacionales en la Argentina Oxygen therapy during Argentine-based national and international flights

    Directory of Open Access Journals (Sweden)

    Alejandro Martínez Fraga

    2008-12-01

    Full Text Available No existe estudio que evalúe el estado de la oxigenoterapia en vuelo (OV en nuestro país. El objetivo de este estudio fue evaluar los requisitos, dificultades, sistemas y costos de la OV de las companías aéreas nacionales (N e internacionales (I que operan desde Buenos Aires. Se utilizó la misma encuesta telefónica y metodología que el estudio de Stoller y col.12. Los autores se comunicaron telefónicamente con 25 aerolíneas que operaban en los dos aeropuertos de Buenos Aires en julio de 2007, y se interrogó sobre los requisitos necesarios para viajar, sistemas y costos. Se usaron técnicas estadísticas convencionales siendo significativa pThere are no data about supplemental oxygen in flight in our country. The objective of our study was to evaluate arranging in-flight-oxygen required by a simulated traveler, system of administration and costs, and to compare the results between Argentine-based (A and international (I airlines. The questionnaire used was similar to that of Stoller et al12. Data collection consisted of telephone calls placed by one of the authors to all commercial air carriers listed in our two Buenos Aires City airports during July 2007. A structured interview with questions was addressed on issues that an oxygen-using air traveler would need to arrange in-flight oxygen. Of the 25 airlines, 6 were discarded because of lack of information (24%, three A -60%-and one I-16%-. All A allowed in-flightoxygen vs. 80% of I (p<0.05, 100% of A and 94% of I required a medical certificate (p=NS; 71% of A and 100% of I required previous notification (p<0.05; 50% of A and 87% of I provided patient interphases of oxygen administration (p=NS. Free of charge oxygen could be provided by 100% of A and 50% of I, with airline charge between 70 to 300 dollars. In conclusion, we observed different policies, rules, availability, and a pronounced lack of standardization of airline information. The cost of oxygen was very different between

  18. Serbian society and gun culture

    Directory of Open Access Journals (Sweden)

    Cvetković Vladimir

    2006-01-01

    Full Text Available This paper questions whether one characteristic of Serbian society is a gun culture. The first part of the paper deals with some theoretical concerns and closer explanation of what is understood by the term gun culture. Few different approaches to the issue are analyzed. The concept used has three main components of the gun culture: system of positive beliefs; social symbols embodied by the gun; agent "bearers" of gun culture. The second part of the paper presents results from Small Arms and Light Weapons survey conducted in 2004 in Serbia. The results were analyzed within the theoretical framework proposed in the first part of the paper.

  19. School in the knowledge society

    DEFF Research Database (Denmark)

    Sørensen, Birgitte Holm; Levinsen, Karin

    2011-01-01

    the challenges new designs for teaching and learning emerge while teacher-student relations transform and the children and young people's competencies are resources in the processes of learning. The chapter present research based on the proactive schools and exemplifies possible outlines of the school......  Implementation of ICT in Danish and Nordic schools gradually moves from an industrial towards an emerging knowledge society school paradigm. Simultaneously it, digital literacy and the school's physical and social organization are constantly negotiated. In schools that proactively meet...

  20. Security and the networked society

    CERN Document Server

    Gregory, Mark

    2013-01-01

    This book examines technological and social events during 2011 and 2012, a period that saw the rise of the hacktivist, the move to mobile platforms, and the ubiquity of social networks. It covers key technological issues such as hacking, cyber-crime, cyber-security and cyber-warfare, the internet, smart phones, electronic security, and information privacy. This book traces the rise into prominence of these issues while also exploring the resulting cultural reaction. The authors' analysis forms the basis of a discussion on future technological directions and their potential impact on society. T

  1. Applied Ethics in Nowadays Society

    Directory of Open Access Journals (Sweden)

    Tomita CIULEI

    2013-12-01

    Full Text Available This special issue is dedicated to Nowadays Applied Ethics in Society, and falls in the field of social sciences and humanities, being hosted both theoretical approaches and empirical research in various areas of applied ethics. Applied ethics analyzes of a series of morally concrete situations of social or professional practice in order to make / adopt decisions. In the field of applied ethics are integrated medical ethics, legal ethics, media ethics, professional ethics, environmental ethics, business ethics etc. Classification-JEL: A23

  2. Strategic Directions of the Movement Disorder Society

    Institute of Scientific and Technical Information of China (English)

    Mark Hallett, M.D

    2000-01-01

    @@The Movement Disorder Society (MDS) is the international not-for-profit organization representing and serving clinicians, other health professionals, researchers and policy makers interested in the area of movement disorders. The Society is represented in 68 countries by approximately 1,500 members. The Society has developed regional sections and welcomes affiliation of regional Movement Disorder groups.

  3. Languages in Contemporary Anglophone Caribbean Societies

    Science.gov (United States)

    Davids, Melva P.

    2013-01-01

    The paper Languages in Contemporary Anglophone Caribbean Societies examines how language is treated in Jamaica and other Anglophone Caribbean societies and the effects of a haphazard approach to language planning on the social dynamics of the society as well as the individual. It briefly explores how Language is handled in Francophone or…

  4. Civil Society Participation at CONFINTEA VI

    Science.gov (United States)

    Haddad, Sergio

    2012-01-01

    This article analyzes the participation of civil society in the Sixth International Conference on Adult Education held in Belem do Para, Brazil, 1-4 December 2009. As a foundation, the discussion first illuminates the important role that civil society in general plays in democratic issues and the relation between the state and society followed by…

  5. MASM, a Matrine Derivative, Offers Radioprotection by Modulating Lethal Total-Body Irradiation-Induced Multiple Signaling Pathways in Wistar Rats

    Directory of Open Access Journals (Sweden)

    Jianzhong Li

    2016-05-01

    Full Text Available Matrine is an alkaloid extracted from Sophora flavescens Ait and has many biological activities, such as anti-inflammatory, antitumor, anti-fibrosis, and immunosuppressive properties. In our previous studies, the matrine derivative MASM was synthesized and exhibited potent inhibitory activity against liver fibrosis. In this study, we mainly investigated its protection against lethal total-body irradiation (TBI in rats. Administration of MASM reduced the radiation sickness characteristics and increased the 30-day survival of rats before or after lethal TBI. Ultrastructural observation illustrated that pretreatment of rats with MASM significantly attenuated the TBI-induced morphological changes in the different organs of irradiated rats. Gene expression profiles revealed that pretreatment with MASM had a dramatic effect on gene expression changes caused by TBI. Pretreatment with MASM prevented differential expression of 53% (765 genes of 1445 differentially expressed genes induced by TBI. Pathway enrichment analysis indicated that these genes were mainly involved in a total of 21 pathways, such as metabolic pathways, pathways in cancer, and mitogen-activated protein kinase (MAPK pathways. Our data indicated that pretreatment of rats with MASM modulated these pathways induced by TBI, suggesting that the pretreatment with MASM might provide the protective effects on lethal TBI mainly or partially through the modulation of these pathways, such as multiple MAPK pathways. Therefore, MASM has the potential to be used as an effective therapeutic or radioprotective agent to minimize irradiation damages and in combination with radiotherapy to improve the efficacy of cancer therapy.

  6. Studies on chemical protectors against radiation, 35; Effects of radioprotective Chinese traditional medicines on radiation-induced lipid peroxidation in vivo and in vitro

    Energy Technology Data Exchange (ETDEWEB)

    Wang, Cheng-Ming; Ohta, Setsuko; Shinoda, Masato (Hoshi Univ., Tokyo (Japan). Faculty of Pharmaceutical Sciences)

    1992-02-01

    The fluctuation of lipid peroxidation (LP) in 9 tissues was investigated in mice for 7 d after whole-body X-irradiation with a lethal dose of bone marrow death. LP increased significantly in bone marrow, thymus, spleen and liver following irradiation, and slightly in brain and testis, but not in blood plasma, submaxillary gland or kidney. The effects of 7 radioprotective Chinese traditional medicines (CTMs) and cysteamine (MEA) on the radiation-induced LP in 4 tissues were studied by i.p. injection before or after irradiation and their LP content in tissues was measured 2 d after irradiation. Most CTMs showed significant inhibition of radiation-induced LP in bone marrow and liver, especially when injected prior to irradiation. Some CTMs also showed such inhibition in spleen. MEA only inhibited the increase of LP in liver when injected before irradiation, but enhanced the increase of LP in spleen. None of these radioprotectors including MEA was recognized to inhibit radiation-induced LP in thymus. The in vitro experiments were carried out using mouse liver microsomal suspension (MS). The MS were prepared from normal (non-irradiated) mice. Each of the 8 radioprotectors was added to MS before or after irradiation and then post-irradiation-incubated at 37deg C. All markedly inhibited radiation-induced LP if added before irradiation, but were slightly less effective if added after. (author).

  7. MASM, a Matrine Derivative, Offers Radioprotection by Modulating Lethal Total-Body Irradiation-Induced Multiple Signaling Pathways in Wistar Rats.

    Science.gov (United States)

    Li, Jianzhong; Xu, Jing; Lu, Yiming; Qiu, Lei; Xu, Weiheng; Lu, Bin; Hu, Zhenlin; Chu, Zhiyong; Chai, Yifeng; Zhang, Junping

    2016-05-17

    Matrine is an alkaloid extracted from Sophora flavescens Ait and has many biological activities, such as anti-inflammatory, antitumor, anti-fibrosis, and immunosuppressive properties. In our previous studies, the matrine derivative MASM was synthesized and exhibited potent inhibitory activity against liver fibrosis. In this study, we mainly investigated its protection against lethal total-body irradiation (TBI) in rats. Administration of MASM reduced the radiation sickness characteristics and increased the 30-day survival of rats before or after lethal TBI. Ultrastructural observation illustrated that pretreatment of rats with MASM significantly attenuated the TBI-induced morphological changes in the different organs of irradiated rats. Gene expression profiles revealed that pretreatment with MASM had a dramatic effect on gene expression changes caused by TBI. Pretreatment with MASM prevented differential expression of 53% (765 genes) of 1445 differentially expressed genes induced by TBI. Pathway enrichment analysis indicated that these genes were mainly involved in a total of 21 pathways, such as metabolic pathways, pathways in cancer, and mitogen-activated protein kinase (MAPK) pathways. Our data indicated that pretreatment of rats with MASM modulated these pathways induced by TBI, suggesting that the pretreatment with MASM might provide the protective effects on lethal TBI mainly or partially through the modulation of these pathways, such as multiple MAPK pathways. Therefore, MASM has the potential to be used as an effective therapeutic or radioprotective agent to minimize irradiation damages and in combination with radiotherapy to improve the efficacy of cancer therapy.

  8. Flavonoids of Rosa roxburghii Tratt exhibit radioprotection and anti-apoptosis properties via the Bcl-2(Ca(2+))/Caspase-3/PARP-1 pathway.

    Science.gov (United States)

    Xu, Ping; Cai, Xinhua; Zhang, Wenbo; Li, Yana; Qiu, Peiyong; Lu, Dandan; He, Xiaoyang

    2016-10-01

    The objective of our study was to assess the radioprotective effect of flavonoids extracted from Rosa roxburghii Tratt (FRT) and investigate the role of Bcl-2(Ca(2+))/Caspase-3/PARP-1 pathway in radiation-induced apoptosis. Cells and mice were exposed to (60)Co γ-rays at a dose of 6 Gy. The radiation treatment induced significant effects on tissue pathological changes, apoptosis, Ca(2+), ROS, DNA damage, and expression levels of Bcl-2, Caspase-3 (C-Caspase-3), and PARP-1. The results showed that FRT acted as an antioxidant, reduced DNA damage, corrected the pathological changes of the tissue induced by radiation, promoted the formation of spleen nodules, resisted sperm aberration, and protected the thymus. FRT significantly reduced cell apoptosis compared with the irradiation group. The expression of Ca(2+) and C-Caspase-3 was decreased after FRT treatment compared with the radiation-treated group. At the same time, expression of prototype PARP-1 and Bcl-2 increased, leading to a decrease in the percentage of apoptosis cells in FRT treatment groups. We conclude that FRT acts as a radioprotector. Apoptosis signals were activated via the Bcl-2(Ca(2+))/Caspase-3/PARP-1 pathway in irradiated cells and FRT inhibited this pathway of apoptosis by down-regulation of C-Caspase-3 and Ca(2+) and up-regulation of prototype PARP-1 and Bcl-2.

  9. Tipología de las bibliotecas argentinas desde el período hispánico hasta 1830: Una primera clasificación provisional Typology of the Argentine Libraries since the Hispanic Period to 1830: A First Provisional Classification

    Directory of Open Access Journals (Sweden)

    Alejandro E. Parada

    2003-12-01

    Full Text Available El presente artículo intenta trazar una breve clasificación de los distintos «tipos» de bibliotecas existentes en el actual territorio argentino durante la dominación hispánica hasta el año 1830. La tipología adoptada es, ante todo, una aproximación provisional y ampliamente perfectible. La contribución se dirige, en líneas generales, a quienes se inician en el estudio de la «Historia del libro, de las bibliotecas y de la lectura» en la Argentina. En este sentido, la bibliografía citada intenta suplir la falta de guías de estudio sobre esta temática. Las bibliotecas identificadas son las siguientes: de instituciones o corporaciones religiosas, particulares, pública catedralicia, pública conventual, pública, de sociedades de extranjeros (societarias, de institutos de enseñanza, circulantes (y gabinetes de lectura, y por encargo u ofrecidas por negociantes.This article tries to outline a brief classification of the different types of existing libraries in the present Argentine territory since the Hispanic domination to 1830. The typology adopted is, above all, a provisional approach greatly rectifiable. The contribution is aimed, in general terms, to whom start the study of the history of the books, libraries, and reading in Argentina. In that sense, the quoted bibliography tries to substitute the lack of study guides on the subject. The identified libraries belong to: institutions or religious corporations; private individuals; foreigners societies (i.e.: belonging to a society; educational institutes; and cathedral public libraries; conventual public libraries; public libraries; circulating libraries (and reading rooms; and libraries made to order or offered by businessmen.

  10. Fluidity in the networked society

    DEFF Research Database (Denmark)

    Levinsen, Karin Tweddell

    2011-01-01

    In the globalized economies e-permeation has become a basic condition in our everyday lives. ICT can no longer be understood solely as artefacts and tools and computer-related literacy are no longer restricted to the ability to operate digital tools for specific purposes. The network society...... adequate designs for teaching and learning for that purpose. We need research that aims to describe the phenomenology of acquiring digital literacy and self-programming in order to be able to identify relevant learning objectives and scaffolding. Findings from such studies are expected to be relevant for e....... The findings relate to both the individual and collaborative barriers and proactive strategies that come into play among the students. Drawing on the findings, it is argued that the presented workshop design contributes to the networked society’s design for ICT, teaching and learning, as the design – at least...

  11. Transfer your ideas to society!

    CERN Document Server

    CERN Bulletin

    2010-01-01

    Science and technology labs are the ideal places for developing innovative solutions. However, inventors sometimes don’t realize that their ideas can find an application in industry, which can in turn have a technical and economic impact on society. Some researchers may think that disclosing an invention is a time-consuming process which is worth doing only in very special cases. But one thing is certain: it is always worth informing the Knowledge and Technology Transfer group, as they will give you the correct advice and support. Don’t be afraid of the paperwork… it can be highly rewarding!   Why should researchers at CERN bother to disclose their inventions to the Knowledge and Technology Transfer Group first? “Because when inventors do so, a process to transfer the technology to industry is set in motion” explains Henning Huuse, Patent Portfolio Manager in the KTT Group. To facilitate this transfer, patent protection can be a useful tool. &...

  12. Multiplex Modeling of the Society

    CERN Document Server

    Kertesz, Janos; Murase, Yohsuke; Jo, Hang-Hyun; Kaski, Kimmo

    2016-01-01

    The society has a multi-layered structure, where the layers represent the different contexts. To model this structure we begin with a single-layer weighted social network (WSN) model showing the Granovetterian structure. We find that when merging such WSN models, a sufficient amount of inter-layer correlation is needed to maintain the relationship between topology and link weights, while these correlations destroy the enhancement in the community overlap due to multiple layers. To resolve this, we devise a geographic multi-layer WSN model, where the indirect inter-layer correlations due to the geographic constraints of individuals enhance the overlaps between the communities and, at the same time, the Granovetterian structure is preserved. Furthermore, the network of social interactions can be considered as a multiplex from another point of view too: each layer corresponds to one communication channel and the aggregate of all them constitutes the entire social network. However, usually one has information onl...

  13. International Mass Spectrometry Society (IMSS).

    Science.gov (United States)

    Cooks, R G; Gelpi, E; Nibbering, N M

    2001-02-01

    This paper gives a brief description of the recently formalized International Mass Spectrometry Society (IMSS). It is presented here in order to increase awareness of the opportunities for collaboration in mass spectrometry in an international context. It also describes the recent 15th International Mass Spectrometry Conference, held August/September 2000, in Barcelona. Each of the authors is associated with the IMSS. The 15th Conference, which covers all of mass spectrometry on a triennial basis, was chaired by Professor Emilio Gelpi of the Instituto de Investigaciones Biomedicas, Barcelona. The outgoing and founding President of the IMSS is Professor Graham Cooks, Purdue University, and the incoming President is Professor Nico Nibbering, University of Amsterdam. Similar material has been provided to the Editors of other journals that cover mass spectrometry.

  14. Marx, Production, Society and Archaeology

    Directory of Open Access Journals (Sweden)

    Lull, Vicente

    2005-06-01

    Full Text Available Social life is produced. Social life takes place before the fact of thinking about it. Drawing upon elements coming from utopian Socialism. British economy and, especially, Hegel’s philosophy, Marx proposed a set of dialectic categories addressed to thinking and to explaining how social life is produced, including in these dynamics the production of ourselves. In this paper, the guidelines of Marx’ thoughts are shown starting from the reading and analysis of his own texts. Also, the pertinence of the relationship between Marx and the research of society is argued through the material objects which make any society real: the archaeological research.

    La vida social se produce. La vida social es anterior al hecho de pensarla. Basándose en elementos procedentes del socialismo utópico, la economía británica y, sobre todo, la filosofía de Hegel, Marx propuso categorías dialécticas para pensar y explicar cómo se produce la vida social, y nosotros en ella. En este artículo se exponen las líneas básicas del pensamiento de Marx a partir de una lectura y análisis de sus propios textos, y se argumenta la pertinencia de la relación entre dicho pensamiento y la investigación de la sociedad a partir de los objetos materiales que la hicieron posible: la investigación arqueológica.

  15. Did Educational Expansion Trigger the Development of an Education Society? Chances and Risks of a New Model of Society

    Science.gov (United States)

    Haunberger, Sigrid

    2010-01-01

    This article focuses on the question of whether educational expansion leads to a new type of society, the education society. Taking into consideration the combined elements of three models of society (the post-industrial society, the knowledge society and the information society)--the chances and risks of an educational society will be elicited…

  16. 14 November 2016 - Ambassador Extraordinary and Plenipotentiary H. M. Cima, Permanent Representative of the Argentine Republic to the United Nations Office and other international organisations in Geneva signing the guest book with CERN Director-General F. Gianotti, Director for International Relations C. Warakaulle; Adviser J. Salicio Diez and V. Perez-Reale, CERN HR Department, are also present.

    CERN Multimedia

    Brice, Maximilien

    2016-01-01

    His Excellency Mr Héctor Marcelo Cima Ambassador Extraordinary and Plenipotentiary Permanent Representative of the Argentine Republic to the United Nations Office and other international organisations in Geneva

  17. Sobre las etapas políticas de los doscientos años argentinos On political stages of two centuries argentines

    Directory of Open Access Journals (Sweden)

    Ricardo Sidicaro

    2011-06-01

    Full Text Available Las diferentes etapas del desarrollo político de los dos siglos argentinos son analizadas por el autor considerando interpretaciones de actores políticos y de sociólogos de cada época que centraron el foco de su interés en los sistemas de poder y en los modos de acción de los dirigentes del Estado y de los partidos políticos.Different stages of political development of two centuries argentines are analyzed by the author considering interpretations of political actors and sociologists of each era that centered the focus of interest in systems of power and modes of action of the leaders of the State and political parties.

  18. Lathyrus linearifolius (Leguminosae-Vicieae confirmed species for the Argentine flora LATHYRUS LINEARIFOLIUS (LEGUMINOSAE-VICIEAE, ESPECIE CONFIRMADA PARA LA FLORA ARGENTINA

    Directory of Open Access Journals (Sweden)

    Ricardo O. Vanni

    2010-08-01

    Full Text Available Lathyrus linearifolius Vogel is confirmed in the Argentine flora. The number of species of the genus recorded for the northeast region is increased to nine. The new citation is described and illustrated indicating its geographic distribution. A key to distinguish the nine species from NE of Argentina is provided Lathyrus linerifolius Vogel se confirma para la flora Argentina. El número de especies del género mencionadas para la región nordeste se incrementa a nueve. Se describe e ilustra la nueva cita, indicando su distribución geográfica. Se presenta una clave para diferenciar a las nueve especies representadas en el NE de Argentina

  19. Coordination of the U.S. DOE-Argentine National Atomic Energy Commission (CNEA) science and technology implementing arrangement. Final report

    Energy Technology Data Exchange (ETDEWEB)

    Ebadian, M.A.

    1998-01-01

    In 1989, the US Department of Energy (DOE) established the Office of Environmental Management (EM) and delegated to the office the responsibility of cleaning up the US nuclear weapons complex. EM`s mission has three primary activities: (1) to assess, remediate, and monitor contaminated sites and facilities; (2) to store, treat, and dispose of wastes from past and current operations; and (3) to develop and implement innovative technologies for environmental remediation. To this end, EM has established domestic and international cooperative technology development programs, including one with the Republic of Argentina. Cooperating with Argentine scientific institutes and industry meets US cleanup objectives by: (1) identifying and accessing Argentine EM-related technologies, thereby leveraging investments and providing cost-savings; (2) improving access to technical information, scientific expertise, and technologies applicable to EM needs; and (3) fostering the development of innovative environmental technologies by increasing US private sector opportunities in Argentina in EM-related areas. Florida International University`s Hemispheric Center for Environmental Technology (FIU-HCET) serves as DOE-OST`s primary technology transfer agent. FIU-HCET acts as the coordinating and managing body for the Department of Energy (DOE)-Argentina National Atomic Energy Commission (CNEA) Arrangement. Activities include implementing standard operating procedures, tracking various technical projects, hosting visiting scientists, advising DOE of potential joint projects based on previous studies, and demonstrating/transferring desired technology. HCET hosts and directs the annual Joint Coordinating Committee for Radioactive and Mixed Waste Management meeting between the DOE and CNEA representatives. Additionally, HCET is evaluating the possibility of establishing similar arrangements with other Latin American countries.

  20. Organización y financiamiento del sistema de salud en la Argentina The Argentine Health System: Organization and financial features

    Directory of Open Access Journals (Sweden)

    Hugo E Arce

    2012-10-01

    Full Text Available El sistema de salud argentino se caracteriza por los siguientes rasgos: a la organización federal del país, donde las provincias se encargan de administrar salud y educación; b coexistencia de servicios públicos y privados, tanto ambulatorios como de internación; c entidades fragmentadas de seguridad social, en su mayoría de origen extra-estatal. Se describen y se calculan los componentes del sistema; se analiza la distribución del poder de decisión entre la autoridad sanitaria nacional y las provinciales y se comparan con la organización de otros países. Se muestran datos estadísticos sobre distribución del gasto en salud y cobertura de servicios en la población. Asimismo se presentan flujos financieros entre las diversas fuentes de recursos, aseguradores, prestadores y los usuarios de cada sector.The Argentine health system is defined by the following features: a federal country organization; b coexistence of public and private services with either outpatients or inpatients; c fragmented entities of social security, most of these originated outside of the state organization. Components of the system are described and weighed; making decisions strength between national and provincial health authorities is analyzed and the Argentine system is compared with that of other countries. Statistical data on distribution of health expenditures and coverage of health services are presented as well as financial flow among diverse funding sources, insurers, providers and users of each sector.

  1. Comparison between the Brazilian regulation of radioprotection and the recommendation of International Commission on Radiological Protection published in 2007; Comparacao entre a norma brasileira de radioprotecao e a recomendacao da International Commission on Radiological Protection publicadas em 2007

    Energy Technology Data Exchange (ETDEWEB)

    Pereira, Wagner S.; Py Junior, Delcy A.; Dantas, Marcelino V.A.; Oliveira, Sergio Q. de, E-mail: wspereira@inb.gov.b, E-mail: delcy@inb.gov.b, E-mail: marcelino@inb.gov.b [Industrias Nucleares do Brasil (UTM/INB), Pocos de Caldas, MG (Brazil). Unidade de Tratamento de Minerios; Kelecom, Alphonse [Universidade Federal Fluminense (LARARA/UFF), Niteroi, RJ (Brazil). Lab. de Radiobiologia e Radiometria; Mortagua, Valter Jose, E-mail: Valter@inb.gov.b [Industrias Nucleares do Brasil (USIN/INB), SP (Brazil). Usina de Interlagos

    2011-10-26

    This paper intends to compare the Brasilian basic regulation on radiological protection with the new recommendations of ICRP through existent differences. The main difference between the publication 60 and the publication 103 of the ICRP is the changing of concept of protection based on the process by use of practice and intervention concepts, to the protection based on the exposure situation, through the concepts of planned exposure, emergency and existent situation. For adequacy to the Brazilian regulation it is necessary to change its concept of protection and the values of radiation weighing and tissues, up dating of radiation detriments, besides to make clear the concept of environmental radioprotection

  2. Argentine Space Assets.

    Science.gov (United States)

    1997-09-01

    Interview, December 1996. Perea, Mauricio, La CFI Invierte En La Empresa Encargada De Las Comunicaciones Por Satelite En Argentina. Corporacion Financiera...1 Attn: Servicio de Comunicaciones Navales 630 Indiana Avenue NW Washington, D.C. 20004-2989 13. A rgentine N

  3. V Argentine - matriarhat

    Index Scriptorium Estoniae

    2007-01-01

    Argentina presidendi Nestor Kirchneri abikaasa Cristina Fernandez de Kirchner edestas presidendivalimistel oma konkurente. C. Kirchneri edu põhjusest, tema võrdlemisest Evita Peroni ja Hillary Clintoniga

  4. Radioprotective effect of ursolic acid in radiation-induced impairment of neurogenesis, learning and memory in adolescent BALB/c mouse.

    Science.gov (United States)

    Tang, Feng Ru; Loke, Weng Keong; Yan, Wong Pei; Khoo, Boo Cheong

    2017-03-21

    The effect of acute irradiation with 5Gy or fractionated exposure with 0.5Gy continuously for 10days (a total dose of 5Gy) was evaluated in an immature BALB/c mouse model. Radioprotective effect of ursolic acid (at 25mg/kg/daily administered 1h after acute or each of fractionated irradiations, and continuously for 30days) was also investigated. We found that both acute and fractionated irradiation at a total dose of 5Gy did not induce any mortality within 30days after exposure to postnatal day 26 (P26) BALB/c mice, but reduced animal weigh gain in the first few weeks. At 90days after irradiation, the weight of animals with acute irradiation was still significantly lower than the control group; no significant difference though was observed for those fractionatedly exposed mice compared to the control group. Behavioral tests indicated that acute irradiation at 5Gy induced deficits in learning and memory in the contextual fear conditioning test. The memory for novel object recognition was also impaired. Similar changes were not observed in mice with fractionated irradiation. Immunohistochemical study demonstrated clearly that acute and fractionated irradiations induced impairment of neurogenesis in the subgranular zone (SGZ) of the dentate gyrus although fractionated exposure induced much lesser loss of newly generated neurons. Ursolic acid administered at 25mg/kg/daily for 30days after irradiation greatly improved acute irradiation-induced deficits in contextual learning and memory and in novel object recognition memory although it exacerbated radiation-induced reduction of neurogenesis in SGZ.

  5. Civil Society in Nigeria: Reasons for Ineffectiveness

    Science.gov (United States)

    2015-03-01

    society vis- à-vis Third World societies would best correspond to the 19th-century early industrialization period in Western societies. On this...because of the traditional governments that were nurtured by Nehru and Gandhi .68 Additionally, Varshney provides a case study of six Hindu and Muslim...not been and is not obligated to the citizens. The evidence of this critical disconnect is in the lack of development and the corresponding low

  6. The Knowledge Society: A Sustainability Paradigm

    Directory of Open Access Journals (Sweden)

    Naim Hamdija Afgan

    2010-10-01

    Full Text Available This paper defines the knowledge society as a human structured organisation based on contemporary developed knowledge and representing new quality of life support systems. It implies the need for a full understanding of distribution of knowledge, access to information and the capability to transfer information into a knowledge. The understanding of knowledge is the central challenge when defining a knowledge society. From our present perception of knowledge society, it is of interest to emphasize the role of the knowledge society in future development of human society. The life support systems are essential pillars of human society development. In this respect knowledge society represents a new paradigm for future development and it is strongly correlated to sustainable development. For this reason the sustainability paradigm of knowledge society is a potential frame for human society development leading to social cohesion, economic competitiveness and stability, use of resources and economic development, safeguarding biodiversity and the ecosystem.In order to verify the mutual relation between knowledge society and sustainability, we have to introduce the difference between these two terms. The knowledge society is based on the agglomeration of eco-knowledge, env-knowledge and soc-knowledge, it may be evaluated as the complex knowledge of quality of life support systems. We have to introduce metrics which will allow us to present knowledge as the paradigm of the number of indicators for verifying progress made.Sustainability metrics are designed to consolidate measures of economic, environmental and social performance of any system. It can be understood as a pattern for evaluation of the available knowledge about systems and their performance. In particular the decision-making process for the selection of the system under consideration must be based on the available knowledge. The link between knowledge and sustainability makes it possible for

  7. Information Society Visions in the Nordic Countries

    DEFF Research Database (Denmark)

    Henten, Anders; Kristensen, Thomas Myrup

    2000-01-01

    This paper analyses the information society visions put forward by the governments/administrations of the Nordic countries and compares them to the visions advanced at the EU-level. The paper suggests that the information society visions constitute a kind of common ideology for almost the whole...... political spectrum although it is characterised by a high degree of neo-liberal thinking. It is further argued that there is no distinctly Nordic model for an information society....

  8. Migration Dynamics in Artificial Agent Societies

    Directory of Open Access Journals (Sweden)

    Harjot Kaur

    2014-02-01

    Full Text Available An Artificial Agent Society can be defined as a collection of agents interacting with each other for some purpose and/or inhabiting a specific locality, possibly in accordance to some common norms/rules. These societies are analogous to human and ecological societies, and are an expanding and emerging field in research about social systems. Social networks, electronic markets and disaster management organizations can be viewed as such artificial (open agent societies and can be best understood as computational societies. Members of such artificial agent societies are heterogeneous intelligent software agents which are operating locally and cooperating and coordinating with each other in order to achieve goals of an agent society. These artificial agent societies have some kind of dynamics existing in them in terms of dynamics of Agent Migration, Role-Assignment, Norm- Emergence, Security and Agent-Interaction. In this paper, we have described the dynamics of agent migration process, starting from the various types of agent migration, causes or reasons for agent migration, consequences of agent migration, and an agent migration framework to model the its behavior for migration of agents between societies.

  9. Mobilising Data in a Knowledge Society

    Science.gov (United States)

    Wessels, Bridgette; Finn, Rachel; Wadhwa, Kush; Bigagli, Lorenzo; Nativi, Stefano; Noorman, Merel

    2016-04-01

    We address how the open data movement is fostering change in institutions, in data, and in social participation in the mobilisation of knowledge society. The idea of a knowledge society has been raised over the last two decades but the transition to such as society has not been realised. Up to the present time, discussion about a knowledge society have largely focused on a knowledge economy and information society rather than a mobilisation to a knowledge society. These debates have, however, taken place before the rise of open data and big data and the development of an open data movement. We consider the role of the open data movement in fostering transformation to a knowledge society. The characteristics of the open data movement that include the strong conviction of the value of open data for society, the attention to the institutional aspects of making data open in an inclusive way, the practical focus on the technological infrastructure are key in mobilising a knowledge society. At the heart of any mobilisation is an emerging open data ecosystem and new ways of producing and using data - whether 'born digital' data, digitised data or big data - and how that data, when made openly available, can be used in a knowledgeable way by societal actors.

  10. Society for Maternal-Fetal Medicine

    Science.gov (United States)

    Navigate Home What is the Society Becoming a Member (US Membership) Becoming a Member (International Membership) International Task Force Mission and Vision Ethics & Endorsement Policy Message from ...

  11. Science, Society, and Social Networking

    Science.gov (United States)

    White, K. S.; Lohwater, T.

    2009-12-01

    The increased use of social networking is changing the way that scientific societies interact with their members and others. The American Association for the Advancement of Science (AAAS) uses a variety of online networks to engage its members and the broader scientific community. AAAS members and non-members can interact with AAAS staff and each other on AAAS sites on Facebook, YouTube, and Twitter, as well as blogs and forums on the AAAS website (www.aaas.org). These tools allow scientists to more readily become engaged in policy by providing information on current science policy topics as well as methods of involvement. For example, members and the public can comment on policy-relevant stories from Science magazine’s ScienceInsider blog, download a weekly policy podcast, receive a weekly email update of policy issues affecting the scientific community, or watch a congressional hearing from their computer. AAAS resource websites and outreach programs, including Communicating Science (www.aaas.org/communicatingscience), Working with Congress (www.aaas.org/spp/cstc/) and Science Careers (http://sciencecareers.sciencemag.org) also provide tools for scientists to become more personally engaged in communicating their findings and involved in the policy process.

  12. Sociodemographic aspect of society evolution

    Directory of Open Access Journals (Sweden)

    Raisa Viktorovna Nifanova

    2013-12-01

    Full Text Available In the article, the authors have classified theories of human aging, having emphasized the theory of «cellular death» on the basis of generalization of an extensive theoretical and empirical material of domestic and foreign researchers. The main theories of specific duration of human life, the biological and social and economic criteria and health factors of causes of death and longevity are briefly presented. The achievements of the genetics of a human body aging are discussed. In the article, the author stopped on a problem of the human genofond stability and obvious delay of its biological evolution in the historical development. Despite a deep socialization of humanity, people remains in captivity of biological life, obey all the laws of the biological organization including those that keep it and provide it to following generations. The biological factors influencing reproduction of the population, unlike social factors, are more stable in time. Various socioeconomic and physiographic conditions interacted for a long time with biological factors, determine a certain life expectancy. In the modern conditions for forward development of society, the special value gets a question of the human potential realization — gold fund of of manufacture, science, culture. With a «century of biology» which starts with the development of molecular biology, genetics, biological cybernetics, the science has new opportunities for effective adaptation of human to new conditions

  13. Financing Human Capital: Families & Society

    Directory of Open Access Journals (Sweden)

    Neantro Saavedra-Rivano

    2016-10-01

    Full Text Available The Organization for Economic Cooperation and Development (OECD describes human capital as “knowledge, skills, competencies and attributes embodied in individuals that facilitate the creation of personal, social and economic wellbeing.”* It follows from this interpretation that investment in human capital includes the sum of all costs that allow a new being to reach economic autonomy. In this paper we analyze the family and social dimensions of human capital and discuss how decisions on human capital formation are taken and how its associated costs are shared. The discussion leads us to identify an important paradox underlying human capital formation, namely the fact that while families are its main contributors the benefits of such investment go primarily to society as a whole. This paradox and its consequences are central to two very important current issues. The first issue, one that is common to many developed countries, is low female fertility which is the source, in particular, of population aging. The second issue, affecting chiefly developing countries, is the inequality of opportunities, a problem lying at the root of underdevelopment. Two options are discussed to respond to this dilemma, one based on redistributive programs and another on market solutions. The paper discusses the limits inherent to redistributive programs and goes on to present at length the alternative market solution. In a nutshell this consists of securitizing the human capital of individuals so as to finance the expenses leading to their upbringing, from birth to adulthood. In addition to describing this scheme the paper analyzes its advantages as well as the difficulties associated with its implementation. It concludes by exploring possible interpretations of the scheme and feasible routes for its adoption.

  14. Values Connecting Societies and Water Systems

    NARCIS (Netherlands)

    J.A. van Ast (Jacko); J.J. Bouma (Jan Jaap); M. Bal (Mansee)

    2013-01-01

    markdownabstract__Introduction__ Water systems such as rivers and lakes have many important values for ecosystems and human societies. Both economical, social-ecological, cultural and political values are met by the water systems, connecting different activities in human society and ecosystem

  15. Locating Science in Society across Europe

    DEFF Research Database (Denmark)

    Mejlgaard, Niels; Bloch, Carter Walter; Degn, Lise;

    2012-01-01

    In search of differences and similarities in relation to the role and location of science in European societies, we use empirical information from 37 countries as a platform for developing typologies concerning dimensions of science in society. These capture clusters of countries and reveal...

  16. Information Assurance and the Information Society

    NARCIS (Netherlands)

    Luiijf, H.A.M.

    1999-01-01

    Society is on the verge of a new era: the information age. Economical changes, a new way of looking at services and new types of conflict are forecasted. Some glimpses of these changes were noticed during the Persian Gulf War. Government decision units, organisations, society and critical industries

  17. Information Assurance and the Information Society

    NARCIS (Netherlands)

    Luiijf, H.A.M.

    1998-01-01

    Society is on the verge of a new era: the information age. Economical changes, a new way of looking at services and new types of conflict are forecasted. Some glimpses of these changes were noticed during the Persian Gulf War. Government decision units, organisations, society and critical industries

  18. Are Teachers Teaching for a Knowledge Society?

    Science.gov (United States)

    Sahlberg, Pasi; Boce, Elona

    2010-01-01

    Many countries whose economies are in transition have initiated ambitious education reforms intended to modernize their education systems to better respond to the needs of new social and economic realities. Albania is a good example of a society that is emerging from a closed planned socialist system and moving fast to an open society and…

  19. The Knowledge Society and Educational Science

    Science.gov (United States)

    Sunker, Heinz

    2006-01-01

    This article examines diverse approaches claiming to analyse new modes of connecting knowledge and society: to depict the rise of the knowledge society or dealing with the social analysis of a new type of capitalism in the shape of informational capitalism. Against these backgrounds it highlights the possible role of education in overcoming the…

  20. Just Say Know? Schooling the Knowledge Society

    Science.gov (United States)

    Willinsky, John

    2005-01-01

    This review essay challenges the practice of rooting educational theory in the economic assumptions that underlie the current championing of a knowledge society. It examines the approaches of three recent works: one book, Andy Hargreaves's Teaching in a Knowledge Society, and two edited collections, Barry Smith's Liberal Education in a Knowledge…

  1. Knowledge Society Discourse and Higher Education

    Science.gov (United States)

    Valimaa, Jussi; Hoffman, David

    2008-01-01

    The growing importance of knowledge, research and innovation are changing the social role of universities in the globalized world. One of the most popular concepts used to approach these changes in post-industrial and post-modern societies is the concept of "Knowledge Society". In this paper, we will analyse the roles higher education is expected…

  2. State or Society? We Need Both

    Science.gov (United States)

    Taylor, Jane; Appleton, Victoria

    2011-01-01

    The concept of Big Society provides inspiration--working "bottom up" to promote "collective action, reciprocity and a new, more engaged relationship between local people and public services". With so much written about the theory of the Big Society, this seems like an ideal time to put a little more practical detail into the mix. The authors argue…

  3. Body image in non-western societies

    NARCIS (Netherlands)

    Edmonds, A.; Cash, T.

    2012-01-01

    This article discusses a range of body modification and conceptions of the body in non-Western societies. It also analyzes difficulties in applying the primarily Western psychological notion of body image to different societies. Body modification is a near human universal, but has many meanings and

  4. Remaking Public Spaces for Civil Society

    Science.gov (United States)

    Ranson, Stewart

    2012-01-01

    The collective action predicaments of the time require citizens to participate in remaking the governance of civil society so that they can become engaged and cooperate together. Can citizens become makers of civil society? This article draws upon Hannah Arendt's "On Revolution" to provide a theory of remaking in which citizens come together to…

  5. The Weeding of a Historical Society Library.

    Science.gov (United States)

    Drake, Cindy Steinhoff

    1992-01-01

    Describes a major deaccessioning (weeding) project begun in 1985 at the library of the Nebraska State Historical Society, including a brief history of the Society and the events leading to the decision to weed. Public controversy over the handling of the project, benefits of the weeding, and new acquisitions policies are also discussed. (MES)

  6. America's Scholarly Societies Raise Their Flags Abroad.

    Science.gov (United States)

    McMurtrie, Beth

    2000-01-01

    Reports that greater numbers of scholarly societies, though American in name, are increasingly international in membership and outlook. Suggests that this trend has been driven by the expanding global outlook of scholars, the collapse of communism, and growth of the Internet. Efforts to encourage local professional societies, fears of American…

  7. Myth and Other Norms in World Society

    DEFF Research Database (Denmark)

    Petersen, Hanne

    2017-01-01

    This article uses the Thule Case at the Danish Supreme Court as an example of normativity in world society. Here norms, which may turn out to be important in world society could be myths of several kinds such as 'narrative normativity'. One myth may be that of (exclusive) sovereignty...

  8. THE KNOWLEDGE SOCIETY AND THE INFORMATION SOCIETY. THE CURRENT SITUATION IN ROMANIA

    OpenAIRE

    STELIAC Nela; POP Ciprian-Viorel; Diana-Aderina MOISUC

    2012-01-01

    Currently, human societies are experiencing a new type of economy: the knowledge economy which is founded on a knowledge society. The main driver of social and economic growth is knowledge itself. The new economy requires a rethinking of the production theory in that traditional factors change into secondary factors, while knowledge becomes the main, essential, production factor. An information society is a prerequisite stage towards a knowledge society; hence it needs to be implemented first...

  9. Keeping our Surveillance Society Non-Totalitarian

    Directory of Open Access Journals (Sweden)

    Bart Jacobs

    2009-08-01

    Full Text Available

    In modern technologically advanced societies citizens leave numerous identifiable digital traces that are being stored, monitored and processed by both private and public parties. This has led to what is commonly called a 'surveillance society'. Increasingly, this abundance of (personal information is also being used to influence and control people. The active, deliberate, large scale control of people in their private lives is seen here as a key characteristic of a totalitarian society. The question (and also the concern arises whether the gradual move to a surveillance society will be followed by a (gradual move to a totalitarian society. The issues presented by the author are illustrated by several examples, with a focus on the technologies involved.

  10. ABACC: annual report 2012 - Brazilian-Argentine Agency for the Accounting and Control of Nuclear Materials; ABACC: informe annual 2012 - Agencia Brasileiro-Argentina de Contabilidade e Controle de Materiais Nucleares

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2012-07-01

    This document reports the actives during the year 2012 related to: technical activities as safeguards application and advances in application of safeguards; main activities conducted in Brazil and main activities developed at ABACC headquarters; management of the Quadripartite Agreement and of the SCCC - Common System for Accounting and Control of Nuclear Materials; training; technical cooperation; institutional, administrative and financial activities; perspectives for 2013; list of inspectors; list of Brazilian and Argentine facilities subject to the Quadripartite Agreement.

  11. Iodine-131 treatment of hyperthyroidism in the elderly. Results in 180 patients. Radioprotection and waste management in 131-iodine therapy; Traitement de l'hyperthyroidie du sujet age par l'iode 131. A propos de 180 patients. Problemes de radioprotection et de gestion des dechets lies au traitement par l'iode 131

    Energy Technology Data Exchange (ETDEWEB)

    Dejax, C.; Freitas, D. de; Leroux, M.A.; Aubert, B. [Centre Jean-Perrin, Medecine Nucleaire, 63 - Clermont-Ferrand (France); Vennat, J.C. [Centre Jean-Perrin, Radiopharmacie, 63 - Clermont-Ferrand (France); Kwiatkowski, F. [Centre Jean-Perrin, Biostatistiques, 63 - Clermont-Ferrand (France)

    2005-09-15

    A retrospective study has been performed in patients treated by iodine-131 for hyperthyroidism between April 1999 and February 2004..Among the 270 patients, 180 were more than 65 years old. After 65 years, hyperthyroidism is most often the consequence of a toxic adenoma or multi-nodular goiter while Graves' disease is most frequent in young patients. Iodine-131 is usually proposed as first line treatment in the elderly, at the opposite of young patients. With a mean follow-up of 12 months, return to euthyroidism is observed in 56.5% of the older patients and in 73.6% of the young patients. We explain this results by the lower incidence of Graves' disease in the elderly. Nuclear medicine physicians are legally obliged to provide patients with a proper information about radioprotection. Recommendations should nevertheless not induce overdue nor illegitimate fear. They should not only be written and standardized, but also given orally and adapted to each patient. Urinary incontinence is not specific to the old patients, but it is more frequent after 65. Collection and storage of contaminated waste is sometimes difficult and has often to be solved on a case by case basis. (author)

  12. Accountability and non-proliferation nuclear regime: a review of the mutual surveillance Brazilian-Argentine model for nuclear safeguards; Accountability e regime de nao proliferacao nuclear: uma avaliacao do modelo de vigilancia mutua brasileiro-argentina de salvaguardas nucleares

    Energy Technology Data Exchange (ETDEWEB)

    Xavier, Roberto Salles

    2014-08-01

    The regimes of accountability, the organizations of global governance and institutional arrangements of global governance of nuclear non-proliferation and of Mutual Vigilance Brazilian-Argentine of Nuclear Safeguards are the subject of research. The starting point is the importance of the institutional model of global governance for the effective control of non-proliferation of nuclear weapons. In this context, the research investigates how to structure the current arrangements of the international nuclear non-proliferation and what is the performance of model Mutual Vigilance Brazilian-Argentine of Nuclear Safeguards in relation to accountability regimes of global governance. For that, was searched the current literature of three theoretical dimensions: accountability, global governance and global governance organizations. In relation to the research method was used the case study and the treatment technique of data the analysis of content. The results allowed: to establish an evaluation model based on accountability mechanisms; to assess how behaves the model Mutual Vigilance Brazilian-Argentine Nuclear Safeguards front of the proposed accountability regime; and to measure the degree to which regional arrangements that work with systems of global governance can strengthen these international systems. (author)

  13. Education in an Information Society

    Science.gov (United States)

    Moore, John W.

    1999-04-01

    Last month's editorial pointed out that higher education may well change significantly as a result of the tremendous impact that information technologies are having on society. It quoted a white paper (1) by Russell Edgerton, Director of the Education Program of the Pew Charitable Trusts. Edgerton argued that higher education is currently failing to meet three challenges: to provide higher quality education; to reduce costs; and to regain its former stature as an important player in shaping public policy. Edgerton recommended that the Pew Trusts should encourage colleges and universities to set more ambitious goals for undergraduate education, to enter the public arena and play a major role in the reform of K-12 education, and to develop an academic profession interested in working toward these goals. Four new aims for undergraduate education were identified: "encouraging institutions to take learning seriously, encouraging faculty to take pedagogy seriously, demonstrating that technology can be used to reduce costs as well as to enhance learning, and developing new incentives for continuous quality improvement." One wonders why institutions of higher education should need to be encouraged toward goals that seem obviously congruent with their mission and self interest, but today's colleges and universities seem more likely to respond to outside offers of funding than to develop their own plans of action. As members of the faculty of such institutions, it behooves us to consider what some of those outside influences are likely to be and what effects they are likely to have on us, on our institutions, and on our students. Higher education is seen as a growth market by Michael Dolence and Donald Norris (2). In 1995 they projected that in five years there would be an increase of 20 million full-time equivalent enrollments in the U.S. and more than 100 million world wide. However, this growth was not projected to be traditional, on-campus students. Most was expected to

  14. Social Value Orientation and Capitalism in Societies

    Science.gov (United States)

    Shahrier, Shibly; Kakinaka, Makoto

    2016-01-01

    Cooperation and competition are core issues in various fields, since they are claimed to affect the evolution of human societies and ecological organizations. A long-standing debate has existed on how social behaviors and preferences are shaped with culture. Considering the economic environment as part of culture, this study examines whether the ongoing modernization of competitive societies, called “capitalism,” affects the evolution of people’s social preferences and behaviors. To test this argument, we implemented field experiments of social value orientation and surveys with 1002 respondents for three different areas of Bangladesh: (i) rural, (ii) transitional and (iii) capitalistic societies. The main result reveals that with the evolution from rural to capitalistic societies, people are likely to be less prosocial and more likely to be competitive. In a transitional society, there is a considerable proportion of “unidentified” people, neither proself nor prosocial, implying the potential existence of unstable states during a transformation period from rural to capitalistic societies. We also find that people become more proself with increasing age, education and number of children. These results suggest that important environmental, climate change or sustainability problems, which require cooperation rather than competition, will pose more danger as societies become capitalistic. PMID:27792756

  15. Social Value Orientation and Capitalism in Societies.

    Science.gov (United States)

    Shahrier, Shibly; Kotani, Koji; Kakinaka, Makoto

    2016-01-01

    Cooperation and competition are core issues in various fields, since they are claimed to affect the evolution of human societies and ecological organizations. A long-standing debate has existed on how social behaviors and preferences are shaped with culture. Considering the economic environment as part of culture, this study examines whether the ongoing modernization of competitive societies, called "capitalism," affects the evolution of people's social preferences and behaviors. To test this argument, we implemented field experiments of social value orientation and surveys with 1002 respondents for three different areas of Bangladesh: (i) rural, (ii) transitional and (iii) capitalistic societies. The main result reveals that with the evolution from rural to capitalistic societies, people are likely to be less prosocial and more likely to be competitive. In a transitional society, there is a considerable proportion of "unidentified" people, neither proself nor prosocial, implying the potential existence of unstable states during a transformation period from rural to capitalistic societies. We also find that people become more proself with increasing age, education and number of children. These results suggest that important environmental, climate change or sustainability problems, which require cooperation rather than competition, will pose more danger as societies become capitalistic.

  16. TRANSFORMATION OF BUSINESS CULTURE IN INFORMATION SOCIETY

    Directory of Open Access Journals (Sweden)

    N. M. Mirzoeva

    2016-01-01

    Full Text Available Cultural values are an important factor affecting functioning and efficiency of organizations. Most contemporary studies of business cultures focus on the differences in national cultures. However, global trends such as the shift from industrial to post-industrial, or information society, also influence the culturebusiness relations. Although there are a lot of theories of the information society, most of them discuss the differences related to the diffusion of information technology and/or the contents and intensity of information flows in media environment. The rise of the information society is accompanied by cultural transformations which include increased activity and participation in media space, cultural and informational heterogeneity and bricolage fostering personalized description of reality. M. Castells points to importance of networking both in society in general and in business in particular. He discusses four different cultural models underlying the information society: technomeritoraty, entrepreneurial culture, the cultures of hackers and virtual communities. These models determine ways of „doing business‟ in the Internet economics and the companies‟ relations to their environment. These models are equally important for the information society but implement different values. Although they typically share egalitarian norms, they may significantly differ in such cultural values as individualism/collectivism or the value of achievement and success. These differences cause inner tensions and conflicts in the information society and, particularly, in IT-related business activities.

  17. ROMANIAN KNOWLEDGE SOCIETY DEVELOPMENT. A PROPOSAL

    Directory of Open Access Journals (Sweden)

    Mirela CERKEZ

    2016-06-01

    Full Text Available This article is an argument for the applicability of the Finnish model of knowledge society oriented public policy-making and not a detailed recommendation on the specific steps Romania should make in order to become a knowledge society. The article is elaborated as a synthesis of the Finnish knowledge society oriented public policies and an analysis of the adequacy of policy transfers from Finland to Romania. Data on Romania are not rich as the task of the article is not to make a diagnosis on Romania’s stage of development. Its main contribution consists of the identification of Finnish public measures meant to foster knowledge society that may be a best practice example for Romania. The introductory part briefly introduces the reader into the theoretical understanding of the concept of knowledge society. Then, I argue that there are several types of knowledge societies and Romania should look for European examples given the resemblance of the starting conditions. The main part of the paper presents the Finnish knowledge society development as an experience modeled by public intervention and I mirror these developments with the Romanian case. In the end, I explore the differences between the two countries that may interfere with the application of the Finnish model. Still, my conclusion is that those differences do not make the Finnish model less applicable. The efforts might need to be more intense and the results might show up later.

  18. Comportamiento de cepas argentinas del virus de la Coriomeningitis Linfocitaria en roedores Behavior of Argentine lymphocytic choriomeningitis virus strains in rodents

    Directory of Open Access Journals (Sweden)

    María Del Cármen Saavedra

    2007-10-01

    Full Text Available La actividad del virus LCM fue informada en Argentina a comienzos de la década del 70 y sólo han sido aisladas cinco cepas a partir del roedor Mus domesticus y dos de humanos. El objetivo de este trabajo consistió en investigar características biológicas de las cepas argentinas de virus LCM para compararlas entre sí y respecto a las cepas históricas WE y Armstrong. En células L 929 se obtuvieron placas bajo agarosa tanto con las cepas humanas como con las cepas de ratón, pero en células Vero sólo se obtuvieron placas con las cepas humanas. No se observó ninguna característica morfométrica de las placas que distinguiera nítidamente a las cepas históricas de las cepas argentinas, ni se observaron diferencias que se relacionen con las especies de origen de las cepas. Las cepas históricas y las cepas argentinas no fueron letales para ratón recién nacido (rrn generando una infección persistente, según se comprobó al inocular ratones recién nacidos (rrn por vía intracerebral con cepas de virus LCM y detectarse virus en los cerebros cosechados a diferentes días post inoculación. La única excepción fue la cepa Cba An 13065 que resultó virulenta para rrn ya que con sólo 0.026 UFP se logró 1 DL50. Todas las cepas resultaron letales en ratón adulto (rad, siendo las cepas de ratón más virulentas que las cepas de humanos. Estos resultados permitieron evidenciar el diferente comportamiento en cultivos celulares de las cepas de ratón con respecto a las cepas humanas, e identificar marcadores de virulencia mediante la respuesta a la inoculación por vía intracerebral del rad y del rrn.The activity of LCM virus was first reported in Argentina at the beginning of the seventies and only five strains have been isolated from rodents Mus domesticus and two from humans. The objective of this paper was to find differential biological characteristics of Argentine strains of LCM virus comparing them in relation to the historical

  19. TRANSFORMATION OF FAMILY IN MODERN RUSSIAN SOCIETY

    Directory of Open Access Journals (Sweden)

    Olga Anatolevna Otradnova

    2014-09-01

    Full Text Available The article examines concept of family in Russian society, changes in interpretation of family, connected with modern tendencies and processes in different sociocultural spheres.   The article is structured and has accurate limits of introduction, main part and conclusion. The relevance of the research is caused by present-day crisis tendencies connected with suicide actions, atomization and hedonization of society, value depreciation of family.  The object of the research is to analyze the conception of family and its transformation in condition of modern Russian society. The tasks are to determine the term family, to analyze approaches to understanding of the family and its genesis, detect some peculiarities of modern Russian society, research the transformation of interpretation of family in modern society; the matter of investigation is modern Russian society, the subject is the transformation of family structures; the following methods of research are used: historical and cultural approach, typological method, existential method, common logic procedures. The research contains author’s definition of the term family, historical and cultural analysis and typological explication of the approaches to interpretation of the problem, classification of family structures - which have been formed in Russian society- on the base of statistic and sociological data.   Some interweaving of concept family with the most important existential values (love, freedom, responsibility were investigated and some tendencies for further development of family relationship in Russian society were revealed, its problems and prospect were emphasized. The results of the investigation testify that modern types of matrimonial relationship differ in limitation of functionality, mutual responsibility, thereby it is possible to state that interpretation of family in modern Russian society has transformed.

  20. Secularized Society. Conscience and Forgiveness

    Directory of Open Access Journals (Sweden)

    Elisa Grimi

    2015-07-01

    Full Text Available This paper‘s goal is to investigate secularized society by retracing its structure. What is hidden behind the notion of secularization? Our intention here is to analyse the social phenomenon of secularisation through the study of its ontology. The research will be on the identity issue, in the first place the living identity to see its resonance in social, cultural, religious and political areas. We will then arrive at the end of this paper, at the thesis – starting from the consciousness of self and the world – of a return to the authentic form of living together in reciprocal welcome as reason of personal enrichment. In such dynamics the forgiveness issue – taking into account Occidental history – will have a central, and, at the same time, redeeming role.Cette étude se propose d’étudier la société sécularisée, en retraçant sa structure. Qu’est-ce qui se cache derrière la notion de sécularisation? Ici nous entendons analyser le phénomène de la sécularisation sociale par l’intermédiaire de l’étude de son ontologie. La recherche portera sur la question de l’identité, en premier lieu sur l’identité vivante, pour voir ses résonances dans les domaines social, culturel, religieux et politique. Ainsi, nous arriverons à la thèse - à partir de la conscience du soi et du monde - pour un retour à une forme authentique du vivre ensemble dans un accueil réciproque en tant que raison d’enrichissement personnel. Dans cette dynamique la question du pardon – en tenant compte de l’histoire Occidental – aura un rôle centrale, et, en même temps, rédempteur.Il presente saggio si propone di investigare il tema della società secolarizzata ripercorrendone la struttura. Attorno alla nozione di secolarizzazione che cosa si nasconde? Si intende qui analizzare il fenomeno sociale della secolarizzazione studiandone l'ontologia. La riflessione muoverà perciò attorno al tema dell'identità, in prima istanza l

  1. Technology and society. Technik und Gesellschaft

    Energy Technology Data Exchange (ETDEWEB)

    Schmutzer, M.E.A.; Winter, H.

    1981-01-01

    Subjects: Developments in semiconductor technology; Electrical engineering in the service of man; The influence of electronic data processing on the office of the future; Microelectronics - a challenge to technology and society; Social effects of computer technology; Innovations and developments in the field of biotechnology; From molecular genetics to genetic engineering; Technical innovatons from a (scientific and) sociological perspective; The problematic nature of technical constraints; Bioengineering and the arts; Arts - engineering - society; Artists' use of telecommunications; Engineering and society/engineering and the arts.

  2. Sexism and gender inequality across 57 societies.

    Science.gov (United States)

    Brandt, Mark J

    2011-11-01

    Theory predicts that individuals' sexism serves to exacerbate inequality in their society's gender hierarchy. Past research, however, has provided only correlational evidence to support this hypothesis. In this study, I analyzed a large longitudinal data set that included representative data from 57 societies. Multilevel modeling showed that sexism directly predicted increases in gender inequality. This study provides the first evidence that sexist ideologies can create gender inequality within societies, and this finding suggests that sexism not only legitimizes the societal status quo, but also actively enhances the severity of the gender hierarchy. Three potential mechanisms for this effect are discussed briefly.

  3. Climate variability, precipitation trends, and impacts on surface processes in humid to arid climate transition zones of the NW Argentine Andes (24° S, 65° W)

    Science.gov (United States)

    Castino, Fabiana; Bookhagen, Bodo; Strecker, Manfred

    2015-04-01

    In the Andes of NW Argentina the distribution and amount of rainfall and associated surface processes are intimately correlated with pronounced topographic gradients and relief contrasts that intercept easterly moisture-bearing winds related to the South American Monsoon System. These conditions have led to a pronounced elevation-dependent distribution of rainfall, which involves areally limited transition zones between the humid eastern flanks of the orogen (eastern foreland and eastern flanks of the E Cordillera) and the arid orogen interior (Puna Plateau). At interannual scales rainfall patterns in this area can be modulated by different atmospheric disturbances, such as the South Atlantic Convergent Zone and the El Niño Southern Oscillation, resulting in drought or flooding events. During the last two decades, field observations document fluvial aggradation in many intermontane valleys along the eastern flanks of the orogen. This may be related to changing overall climatic conditions, impacting hillslope erosion processes at high elevation, but contemporaneously overwhelming the fluvial system and reducing transport capacity, leading to transient sediment storage. We analyzed rainfall trends in the humid to arid climatic transition zone in the NW Argentine Andes over different time periods to characterize the spatiotemporal variability of rainfall patterns during the last five decades. We relied on both daily ground station (40 stations, 1956-2012) and three-hourly remote sensing rainfall data (3B42 V7 TRMM data, 1998-2014). Seasonal total anomalies analysis shows a complex rainfall pattern, reflected both in station data and remote sensing observations with clear positive (negative) statistically significant trends in the northern Puna Plateau and in the northern part of the foreland basin (southern part of the eastern foreland basin) of up to +20mm/yr (-20mm/yr). Quantile regression of three-hourly and daily data furthermore shows that, on average

  4. Discussion about decision support systems using continuous multi-criteria methods for planning in areas with hydro-basins, agriculture and forests, from examples in Argentine.

    Science.gov (United States)

    Anton, J. M.; Grau, J. B.; Tarquis, A. M.; Andina, D.; Cisneros, J. M.; Sanchez, E.

    2012-04-01

    The authors were involved last years in projects considering diverse decision problems on the use of some regions in Argentine, and also related to rivers or rural services in them. They used sets of multi-criteria decision methods, first discrete when the problem included few distinct alternatives, such as e.g. forestry, traditional or intensive agriculture. For attributes they were different effects, classified then in environmental, economic and social criteria. Extending to other gentler areas, such as at South of the Province of Córdoba, Arg., they have balanced more delicately effects of continuous levels of actions, with a combination of Goal Programming linked methods, and they adopted compromises to have precise solutions. That has shown, and in part open, a line of research, as the setting of such models require various kinds of definitions and valuations, including optimizations, goals with penalties in deviations and restrictions. That can be in diverse detail level and horizon, in presence of various technical and human horizons, and that can influence politics of use of terrain and production that will require public and private agents. The research will consider consideration of use and conservation of soils, human systems and agro productions, and hence models for optimization, preferably in such Goal Programming ways. That will require considering various systems of models, first in theory to be reliable, and then in different areas to evaluate the quality of conclusions, and maybe that successively if results are found advantageous. The Bayesian ways will be considered, but they would require a prospective of sets of precise future states of nature or markets with elicited probabilities, which are neither evident nor decisive for the moment, as changes may occur in years but will be very unexpected or uncertain. The results will be lines of models to aid to establish policies of use of territories, by public agencies setting frames for private

  5. Estudio histórico y bibliométrico de la revista argentina Diaeta Historical and bibliometric study of the argentine journal Diata

    Directory of Open Access Journals (Sweden)

    V Aguirre

    2010-03-01

    Full Text Available Objetivo: Evaluar el desarrollo de la investigación y la publicación científica de los nutricionistas argentinos a través del análisis histórico y bibliométrico de la revista Diaeta. Método: Diseño descriptivo transversal. Todos los números de la revista Diaeta desde el comienzo de su edición en 1981 hasta fines de 2008 fueron incluidos. Se obtuvo una muestra de 63 ejemplares mediante muestreo estratificado por cada año. Resultados: Se observó un aumento en el porcentaje de Artículos Originales y el aumento en otras áreas temáticas diferentes de la tradicional de Dietoterapia. El promedio del número de autores por artículo científico, fue de tres por Artículo Original y dos autores por Trabajo de Actualización y/o Revisión. Las citas bibliográficas fueron en su mayoría en idioma inglés, en segundo término en español. Las profesiones de los autores más productivos, además de los Licenciados en Nutrición fueron; médicos, químicos, e ingenieros. Conclusiones: La revista DIAETA ha mostrado en pocos años un importante progreso acompañando el desarrollo de la investigación de los nutricionistas del país.Objective: To evaluate the development of research and scientific publications by Argentine nutritionists through the historical and bibliometric analysis of Diaeta journal. Methodology: Descriptive transversal design. All the issues of Diaeta journal, from the beginning of its edition in 1981 through late 2008, were included in this study. A sample of 63 units was obtained through a stratified sampling for each year. Results: An increase in the number of Original Articles and other thematic areas other than the traditional Diet Therapy was observed. The average number of authors per scientific article was three for Original Articles and two authors for Update and/or Review articles. The most frequent language for the bibliographical references was English, Spanish being in the second place. Professions of the most

  6. Technology and society building our sociotechnical future

    CERN Document Server

    Wetmore, Jameson M

    2009-01-01

    Technological change does not happen in a vacuum; decisions about which technologies to develop, fund, market, and use engage ideas about values as well as calculations of costs and benefits. This anthology focuses on the interconnections of technology, society, and values. It offers writings by authorities as varied as Freeman Dyson, Laurence Lessig, Bruno Latour, and Judy Wajcman that will introduce readers to recent thinking about technology and provide them with conceptual tools, a theoretical framework, and knowledge to help understand how technology shapes society and how society shapes technology. It offers readers a new perspective on such current issues as globalization, the balance between security and privacy, environmental justice, and poverty in the developing world. The careful ordering of the selections and the editors' introductions give Technology and Society a coherence and flow that is unusual in anthologies. The book is suitable for use in undergraduate courses in STS and other disciplines...

  7. Innovation Habitat: Sustainable possibilities for the society

    Directory of Open Access Journals (Sweden)

    Andreia de Bem Machado

    2015-12-01

    Full Text Available Contemporary society is moving in the core of a reality in which sustainability needs to be thought out and inserted through practices carried out in different dimensions of society, such as organizations, public and private institutions. This paper aims to identify the contribution of innovation habitats (IH for sustainability in society. The methodology used was systematic review of scientific literature in one online database. As a result, it was identified: 47 scientific papers publicated since 2000, but more frequently in the last year, 2014, with 10 publications, without providing a reference author in the area. There was also a high number of papers about management and social sciences. It was noticed a short number of publications, empirical and theoretical, about practices to promote sustainable actions in the society, so this indicates the need of research on this kind of practices, with innovation environment as the driver.

  8. Sociological theory and the knowledge society

    Directory of Open Access Journals (Sweden)

    Ashwin Kumar

    2012-08-01

    Full Text Available Globalisation and its knowledge society are bringing about a major change in the entire social system and this, in turn, is creating several discontinuities in the social order in many parts of the world. In some countries, the traditional economy has been thrown out of equilibrium, in some others the political system has been destabilised and in all countries the existing social order based mostly on conformity has been dislocated or de-railed. This paper examines the prospect of sociological theory in the wake of Information Technology (IT and Knowledge Revolution (KR that are overtaking societies the world over and that are changing many of the traditional values and norms of behaviour of individuals and organisations in society. It tries to habilitate sociology and its theoretical underpinnings in the matrix of the Knowledge Society built on Information Technology.

  9. CERN hosts Physics and Society Forum

    CERN Multimedia

    Katarina Anthony

    2012-01-01

    On 28-29 March, CERN hosted the fifth edition of the European Physical Society's “Physics and Society” forum. The forum addresses the role of physicists in general society – be they in education, politics, industry or communication. This year, attendees looked at how physicists have adapted - and can continue to adapt - to work in the economic marketplace.   “The forums began back in 2006, as a special closing event for the 2005 World Year of Physics,” explains Martial Ducloy, former President of the French Physical Society and Chair of the EPS Forum Physics and Society. “We decided to keep the sessions going, as they gave physicists a venue to discuss the non-scientific issues that influence their daily work. As the world's largest international physics laboratory – and the venue for this year's EPS Council – CERN seemed the ideal place to host this year's forum.” The forum ...

  10. Transitional Justice, Culture and Society: Beyond Outreach

    Directory of Open Access Journals (Sweden)

    Elise Ketelaars

    2014-12-01

    Full Text Available This article reviews Transitional Justice, Culture and Society: Beyond Outreach, edited by Clara Ramírez-Barat, International Center for Transitional Justice, New York: Social Science Research Council, 2014 ISBN 978-0-911400-02-1

  11. The CERN & Society programme launches its newsletter

    CERN Multimedia

    Matteo Castoldi

    2016-01-01

    The newsletter will be issued quarterly. Sign up to remain informed about the latest initiatives of the CERN & Society programme!    The CERN & Society programme encompasses projects in the areas of education and outreach, innovation and knowledge exchange, and culture and creativity that spread the CERN spirit of scientific curiosity for the inspiration and benefit of society. The programme is funded primarily by the CERN & Society Foundation, a charitable foundation established by CERN and supported by individuals, trusts, organisations and commercial companies. The projects are inspired or enabled by CERN but lie outside of the Laboratory’s specific research mandate. We especially want to help young talent from around the world to flourish in the future. The programme is now launching its newsletter, which will be issued quarterly. Everybody who wants to be informed about CERN & Society’s activities, stay up-to-date with its latest in...

  12. New Groups Study Science's Effect on Society

    Science.gov (United States)

    O'Sullivan, Dermot A.

    1973-01-01

    Describes the chief aims of the Council for Science and Society in London and the International Institute for Applied Systems Analysis in Vienna. Indicates that both groups are planning to function as a multinational interdisciplinary organization. (CC)

  13. THE COPYRIGHT IN THE INFORMATION SOCIETY

    Directory of Open Access Journals (Sweden)

    Cristinel Ioan MURZEA

    2016-06-01

    Full Text Available The contemporary society has imposed new demands in the development and application of copyright as a result of structural changes which occur as a result of developments in science, technology and especially communication technologies and of informatics. Legal doctrine highlights axiomatic truth according to which the “environment created by technological developments” brings forward the profound informational dimension of human being in the contemporary society. In this context the integration and the harmonization of legislation of the Member States of the European Union leads to a complex and dynamic process by which the copyright called to legally protect intellectual creation in contemporary society, acquires a universal vocation in the contemporary society, because there are no barriers or impediments in its spreading especially due to the phenomenon of multiplication and improvement of means of information and communication

  14. The German Physical Society Under National Socialism

    Science.gov (United States)

    Hoffmann, Dieter; Walker, Mark

    2004-12-01

    The history of the German Physical Society from 1933 to 1945 is not the same as a comprehensive history of physics under Adolf Hitler, but it does reflect important aspects of physicists' work and life during the Third Reich.

  15. Sociological theory and the knowledge society

    Directory of Open Access Journals (Sweden)

    Ashwin Kumar

    2012-08-01

    Full Text Available Globalisation and its knowledge society are bringing about a major change in the entire social system and this, in turn, is creating several discontinuities in the social order in many parts of the world.  In some countries, the traditional economy has been thrown out of equilibrium, in some others the political system has been destabilised and in all countries the existing social order based mostly on conformity has been dislocated or de-railed. This paper examines the prospect of sociological theory in the wake of Information Technology (IT and Knowledge Revolution (KR that are overtaking societies the world over and that are changing many of the traditional values and norms of behaviour of individuals and organisations in society. It tries to habilitate sociology and its theoretical underpinnings in the matrix of the Knowledge Society built on Information Technology.

  16. Coevolution of nutrigenomics and society: ethical considerations

    NARCIS (Netherlands)

    Korthals, M.

    2011-01-01

    To optimize the coevolution of nutrigenomics and society (ie, the reciprocal stimulation of both developments), I analyzed chances for a fruitful match between normative concepts and strategies of both developments. Nutrigenomics embodies =3 normative concepts. First, food is exclusively interpreted

  17. March 2016 Arizona thoracic society ntoes

    Directory of Open Access Journals (Sweden)

    Robbins RA

    2016-03-01

    Full Text Available No abstract available. Article truncated at 150 words. The March 2016 Arizona Thoracic Society meeting was held on Wednesday, March 23, 2016 at the Scottsdale Shea Hospital beginning at 6:30 PM. This was a dinner meeting with case presentations. There were 17 in attendance representing the pulmonary, critical care, sleep, and radiology communities. Of note, Dr. Elijah Poulos drove from Flagstaff to attend the meeting. Dr. Rick Robbins gave a summary of ATS Hill Day and the possibility of collecting dues for the Arizona Thoracic Society along with American Thoracic Society dues. Dr. Robbins also presented the results of emailing the Table of Contents of the Southwest Journal of Pulmonary and Critical Care to the ATS members in Arizona, New Mexico, Colorado, and Nevada along with listing the contents in Inspirations the California Thoracic Society newsletter. The number of page views doubled over usual the following day. Dr. George Parides presented a short presentation on whether coccidioidomycosis nodules ...

  18. American Chemical Society Annual Report 1985 (Education).

    Science.gov (United States)

    Chemical and Engineering News, 1986

    1986-01-01

    Presents a section of the American Chemical Society's annual reports dealing with precollege education, college/university education, continuing education, and professional training. Includes highlights of grants, project summaries, types of financial support, instructional materials, and other areas. (JN)

  19. Facebook: Networking the Community of Society

    DEFF Research Database (Denmark)

    Tække, Jesper

    The article examines the significance of new "social media" like Facebook for the way we socialize, develop social identity, and shape society. Based on the work of Luhmann, the article proposes that community communication is fundamental to the selfregulation of our society and that this type...... of communication also provides the basis for the formation and maintenance of people’s social identity, so that they and society are in harmony. In contrast to community communication, the article explores the notion of network communication, which is classified as communication that may have some positive effects...... but that also may pose certain risks for modern society and for the development and maintenance of social identity. The article argues that communication through and about status updates on Facebook may be categorized as network communication, and finally it discusses whether and to what extent this kind...

  20. Change of values in the consumer society

    Directory of Open Access Journals (Sweden)

    Austruma S.

    2012-10-01

    Full Text Available A common feature of our age is orientation of young people towards transitional values. Economic partnership of consumer society has a direct impact on values of society and even if the process of change of values can be affected by formers of education politics, economists and politicians, young people still choose values, which conform with their own lifestyle. Content of educational subjects is connected with study, succession of cultural values, study of classified knowledge and skills, which is also a prerequisite of formation of personality. Societies of all ages has formed according to the specific mechanism, accumulating and integrating general, notable at that time ideas, preserving and transforming their own social experience to the next generations. Each culture declares itself from its scale of values and norms. Priority of change of post material and material values changes together with conditions of cultural, historical and social-political life. Change of paradigms is change of viewpoint of the world, therefore conditions of value choice relate not only to separate groups, but to whole cultures. Young people, similar to other members of society, are forced to construct their own identity and to form their own life insurance strategies offered by the consumer society. Consumer society forms its values and it is creator of its own significance, but young people as social agents are reproducers of values of consumer society. Research results of World Value Surveys (WVS from six continents discovered big differences in value priorities between younger and older generations, which indicates not only inter-generation value change, but also changes in the whole society. The research “Value choice of young people in consumer society” in our country shows, that although the lifestyle of young people is pragmatic, traditional value – family is also one of the most often mentioned and important values in consumer society. But